Collection: Screws - Countersunk

Screws -> Countersunk
Thread Size (C) Overall Length (L) Material Max Head Diameter Max Head Height Indicative
Image
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
12.7
mm

(Equiv. 0.5 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Deleted Item. Available while stocks last.
Part Number: SK028C-013-PH-CZ (PK-20)
9 units (180 pcs) Available Now | Item Discontinued - Up to 9 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.64 AUD
Regular price $11.48 AUD Sale price $3.64 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

9 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size (C) Overall Length (L) Material Max Head Diameter Indicative
Image
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
12.7
mm

(Equiv. 0.5 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 12.7 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Max Head Height: 2.1 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Deleted Item. Available while stocks last.
Part Number: SK028C-013-PH-CZ (PK-20)
9 units (180 pcs) Available Now | Item Discontinued - Up to 9 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.64 AUD
Regular price $11.48 AUD Sale price $3.64 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

9 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-016-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $14.32 AUD
Regular price Sale price $14.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-016-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $14.32 AUD
Regular price Sale price $14.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-016-SL-S4 (PK-22)
1 pack (22 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.40 AUD
Regular price $8.36 AUD Sale price $4.40 AUD
Priced, Stocked and Sold Per 22 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (22 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm

(Equiv. 0.626 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK028C-016-SL-S4 (PK-22)
1 pack (22 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $4.40 AUD
Regular price $8.36 AUD Sale price $4.40 AUD
Priced, Stocked and Sold Per 22 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (22 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
304 Stainless

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-016-SK-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $38.23 AUD
Regular price Sale price $38.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
304 Stainless

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-016-SK-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $38.23 AUD
Regular price Sale price $38.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-016-SK-C (PK-10)
8 units (80 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.86 AUD
Regular price $5.26 AUD Sale price $2.86 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 8 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(Equiv. 0.626 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 15.9 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-016-SK-C (PK-10)
8 units (80 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.86 AUD
Regular price $5.26 AUD Sale price $2.86 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

8 units (80 pcs) Available Now. Backorder if more than 8.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-019-PH-S4 (PK-50)
1 pack (50 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.59 AUD
Regular price $6.68 AUD Sale price $3.59 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-019-PH-S4 (PK-50)
1 pack (50 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.59 AUD
Regular price $6.68 AUD Sale price $3.59 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (50 pcs) Available Now. Backorder if more than 1.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
304 Stainless

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-019-SK-S4 (PK-20)
4 units (80 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $4.23 AUD
Regular price $7.85 AUD Sale price $4.23 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
304 Stainless

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-019-SK-S4 (PK-20)
4 units (80 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $4.23 AUD
Regular price $7.85 AUD Sale price $4.23 AUD
Priced, Stocked and Sold Per 20 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (80 pcs) Available Now. Backorder if more than 4.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-019-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $33.05 AUD
Regular price Sale price $33.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(Equiv. 0.752 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-019-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $33.05 AUD
Regular price Sale price $33.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-019-PH-CZ (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 26, 2026
Regular price $19.05 AUD
Regular price $22.85 AUD Sale price $19.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
19.1
mm

(Equiv. 0.752 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 19.1 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Max Head Height: 2.1 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-019-PH-CZ (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 26, 2026
Regular price $19.05 AUD
Regular price $22.85 AUD Sale price $19.05 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 22.2 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
22.2
mm
+ 0.0 / - 0.76
(Equiv. 0.874 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 22.2 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-022-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $45.50 AUD
Regular price Sale price $45.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 22.2 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
22.2
mm
+ 0.0 / - 0.76
(Equiv. 0.874 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 22.2 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-022-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $45.50 AUD
Regular price Sale price $45.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm

(Equiv. 1 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-025-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $20.59 AUD
Regular price Sale price $20.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm

(Equiv. 1 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-025-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $20.59 AUD
Regular price Sale price $20.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
304 Stainless

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-025-SK-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $51.50 AUD
Regular price Sale price $51.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
304 Stainless

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-025-SK-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $51.50 AUD
Regular price Sale price $51.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-025-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $73.95 AUD
Regular price Sale price $73.95 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(Equiv. 1 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-025-SK-C (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $73.95 AUD
Regular price Sale price $73.95 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm

(Equiv. 1 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-025-PH-CZ (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 26, 2026
Regular price $19.95 AUD
Regular price $23.95 AUD Sale price $19.95 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
25.4
mm

(Equiv. 1 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 25.4 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Max Head Height: 2.1 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-025-PH-CZ (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 26, 2026
Regular price $19.95 AUD
Regular price $23.95 AUD Sale price $19.95 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
31.8
mm

(Equiv. 1.252 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-032-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $33.50 AUD
Regular price Sale price $33.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
31.8
mm

(Equiv. 1.252 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-032-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $33.50 AUD
Regular price Sale price $33.50 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-032-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $85.59 AUD
Regular price $102.71 AUD Sale price $85.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - High Tensile Steel / Black Oxide Socket Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(Equiv. 1.252 in.)
Material
High Tensile Steel / Black Oxide

Max Head Diameter
6.5
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 31.8 mm - High Tensile Steel / Black Oxide Socket
Material: High Tensile Steel Black Oxide    Max Head Height: 2.1 mm    Type: 1.59 (1/16)   
Category: Screws - Countersunk - Socket
Part Number: SK028C-032-SK-C (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $85.59 AUD
Regular price $102.71 AUD Sale price $85.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
38.1
mm

(Equiv. 1.5 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Max Head Height
1.70
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-038-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $41.68 AUD
Regular price Sale price $41.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - 304 Stainless Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
38.1
mm

(Equiv. 1.5 in.)
Material
304 Stainless

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.70 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-038-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $41.68 AUD
Regular price Sale price $41.68 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
38.1
mm

(Equiv. 1.5 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Max Head Height
2.1
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-038-PH-CZ (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 26, 2026
Regular price $20.68 AUD
Regular price $24.82 AUD Sale price $20.68 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - Zinc Plated Phillips Screw
Thread Size (C)
4-40 UNC (2.85mm)

Overall Length (L)
38.1
mm

(Equiv. 1.5 in.)
Material
Zinc Plated

Max Head Diameter
5.38
mm
Countersunk Screws - 4-40 UNC - 2.85mm - 38.1 mm - Zinc Plated Phillips
Material: Steel Zinc Plated    Max Head Height: 2.1 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK028C-038-PH-CZ (PK-50)
Out of Stock | Backorder Now | Orders can be expected around Thu, Feb 26, 2026
Regular price $20.68 AUD
Regular price $24.82 AUD Sale price $20.68 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - M3 - 3x0.5mm - 4 mm - 304 Stainless Phillips Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
4
mm

(Equiv. 0.157 in.)
Material
304 Stainless

Max Head Diameter
5.60
mm
Max Head Height
1.65
mm
Countersunk Screws - M3 - 3x0.5mm - 4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK030M-004-PH-S4 (PK-100)
1 pack (100 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.86 AUD
Regular price $7.21 AUD Sale price $3.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Countersunk Screws - M3 - 3x0.5mm - 4 mm - 304 Stainless Phillips Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
4
mm

(Equiv. 0.157 in.)
Material
304 Stainless

Max Head Diameter
5.60
mm
Countersunk Screws - M3 - 3x0.5mm - 4 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.65 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK030M-004-PH-S4 (PK-100)
1 pack (100 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $3.86 AUD
Regular price $7.21 AUD Sale price $3.86 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (100 pcs) Available Now. Backorder if more than 1.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Slotted Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm

(Equiv. 0.197 in.)
Material
304 Stainless

Max Head Diameter
5.60
mm
Max Head Height
1.65
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK030M-005-SL-S4 (PK-30)
1 pack (30 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Priced, Stocked and Sold Per 30 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (30 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Slotted Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm

(Equiv. 0.197 in.)
Material
304 Stainless

Max Head Diameter
5.60
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Slotted
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.65 mm    Type: Countersunk / Slotted   
Category: Screws - Countersunk - Slotted
Deleted Item. Available while stocks last.
Part Number: SK030M-005-SL-S4 (PK-30)
1 pack (30 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $8.00 AUD
Regular price $15.20 AUD Sale price $8.00 AUD
Priced, Stocked and Sold Per 30 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (30 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm
+/- 0.25
(Equiv. 0.197 in.)
Material
304 Stainless

Max Head Diameter
5.6
mm
Max Head Height
1.7
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: 2.00   
Category: Screws - Countersunk - Socket
Part Number: SK030M-005-SK-S4 (PK-100)
10 units (1000 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $5.41 AUD
Regular price Sale price $5.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 10 available can be backordered.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm
+/- 0.25
(Equiv. 0.197 in.)
Material
304 Stainless

Max Head Diameter
5.6
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Socket
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.7 mm    Type: 2.00   
Category: Screws - Countersunk - Socket
Part Number: SK030M-005-SK-S4 (PK-100)
10 units (1000 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $5.41 AUD
Regular price Sale price $5.41 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

10 units (1000 pcs) Available Now. Backorder if more than 10.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Phillips Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm

(Equiv. 0.197 in.)
Material
304 Stainless

Max Head Diameter
5.60
mm
Max Head Height
1.65
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK030M-005-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $7.32 AUD
Regular price Sale price $7.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Phillips Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm

(Equiv. 0.197 in.)
Material
304 Stainless

Max Head Diameter
5.60
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 304 Stainless Phillips
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 1.65 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK030M-005-PH-S4 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $7.32 AUD
Regular price Sale price $7.32 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm
+/- 0.25
(Equiv. 0.197 in.)
Material
316 Stainless

Max Head Diameter
5.6
mm
Max Head Height
1.7
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Socket
Material: Stainless Steel 316 (Similar to A4, 18-10)    Type: 2.00   
Category: Screws - Countersunk - Socket
Part Number: SK030M-005-SK-S6 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $37.95 AUD
Regular price Sale price $37.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Socket Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm
+/- 0.25
(Equiv. 0.197 in.)
Material
316 Stainless

Max Head Diameter
5.6
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Socket
Material: Stainless Steel 316 (Similar to A4, 18-10)    Max Head Height: 1.7 mm    Type: 2.00   
Category: Screws - Countersunk - Socket
Part Number: SK030M-005-SK-S6 (PK-100)
Out of Stock | Backorder Now | Orders can be expected around Sat, Jan 10, 2026
Regular price $37.95 AUD
Regular price Sale price $37.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Phillips Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm

(Equiv. 0.197 in.)
Material
316 Stainless

Max Head Diameter
5.60
mm
Max Head Height
1.65
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Phillips
Material: Stainless Steel 316 (Similar to A4, 18-10)    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK030M-005-PH-S6 (PK-10)
3 units (30 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.41 AUD
Regular price $2.89 AUD Sale price $2.41 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Phillips Screw
Thread Size (C)
M3 (3x0.5mm)

Overall Length (L)
5
mm

(Equiv. 0.197 in.)
Material
316 Stainless

Max Head Diameter
5.60
mm
Countersunk Screws - M3 - 3x0.5mm - 5 mm - 316 Stainless Phillips
Material: Stainless Steel 316 (Similar to A4, 18-10)    Max Head Height: 1.65 mm    Type: Countersunk / Philips   
Category: Screws - Countersunk - Phillips
Part Number: SK030M-005-PH-S6 (PK-10)
3 units (30 pcs) Available Now | Further orders can be expected around Sat, Jan 10, 2026
Regular price $2.41 AUD
Regular price $2.89 AUD Sale price $2.41 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

3 units (30 pcs) Available Now. Backorder if more than 3.