Collection: Screws - Countersunk - Socket

1268 Products in this selection
This is a combined category of Socket Countersunk Screws.
Use the filters in the table below, or the category tree above to refine the selection. To order any item, simply click the part number for a full product page, then add to your cart.
Additional resources:
PDF Screws Catalogue
Washers
Nuts
A more concise listing may be found on the Smallparts store at Screws - Countersunk - Socket. Smallparts promote the most popular MBA products.
Thread Size (C) Overall Length (L) Material Max Head Diameter Max Head Height Minimum Thread Length (l) Indicative
Image
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-019-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $35.23 AUD
Regular price Sale price $35.23 AUD
Per 50
Thread Size (C) Overall Length (L) Material Max Head Diameter Indicative
Image
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-019-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $35.23 AUD
Regular price Sale price $35.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-019-SK-CZ (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $36.86 AUD
Regular price Sale price $36.86 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-019-SK-CZ (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 19.1 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $36.86 AUD
Regular price Sale price $36.86 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-025-SK-S4 (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - 304 Stainless
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $50.41 AUD
Regular price Sale price $50.41 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-025-SK-S4 (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - 304 Stainless
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $50.41 AUD
Regular price Sale price $50.41 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-025-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $38.41 AUD
Regular price Sale price $38.41 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-025-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $38.41 AUD
Regular price Sale price $38.41 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-025-SK-CZ (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $75.05 AUD
Regular price Sale price $75.05 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-025-SK-CZ (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 25.4 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $75.05 AUD
Regular price Sale price $75.05 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-032-SK-S4 (5 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - 304 Stainless
20 units (100 pcs) Available Immediately | Further orders can be expected around Fri, Jun 06, 2025
Regular price $4.95 AUD
Regular price Sale price $4.95 AUD
Per 5
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-032-SK-S4 (5 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - 304 Stainless
20 units (100 pcs) Available Immediately | Further orders can be expected around Fri, Jun 06, 2025
Regular price $4.95 AUD
Regular price Sale price $4.95 AUD
Per 5
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-032-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $43.23 AUD
Regular price Sale price $43.23 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-032-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $43.23 AUD
Regular price Sale price $43.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-032-SK-CZ (5 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - Zinc Plated Steel
16 units (80 pcs) Available Immediately | Further orders can be expected around Fri, Jun 06, 2025
Regular price $6.77 AUD
Regular price Sale price $6.77 AUD
Per 5
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-032-SK-CZ (5 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 31.8 mm - Zinc Plated Steel
16 units (80 pcs) Available Immediately | Further orders can be expected around Fri, Jun 06, 2025
Regular price $6.77 AUD
Regular price Sale price $6.77 AUD
Per 5
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-038-SK-S4 (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - 304 Stainless
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $61.86 AUD
Regular price Sale price $61.86 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-038-SK-S4 (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - 304 Stainless
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $61.86 AUD
Regular price Sale price $61.86 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-038-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $71.86 AUD
Regular price Sale price $71.86 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-038-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $71.86 AUD
Regular price Sale price $71.86 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-038-SK-CZ (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $112.59 AUD
Regular price Sale price $112.59 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
Zinc Plated Steel
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-038-SK-CZ (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 38.1 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $112.59 AUD
Regular price Sale price $112.59 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
50.8
mm
+ 0.0 / - 1.02
(2 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 50.8 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-051-SK-S4 (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 50.8 mm - 304 Stainless
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $51.50 AUD
Regular price Sale price $51.50 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
50.8
mm
+ 0.0 / - 1.02
(2 in.)
Material
304 Stainless
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 50.8 mm - 304 Stainless
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - 304 Stainless
Part Number: SK064F-051-SK-S4 (50 Pcs) Countersunk Screws - 1/4-28 UNF -6.35mm- 50.8 mm - 304 Stainless
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $51.50 AUD
Regular price Sale price $51.50 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
50.8
mm
+ 0.0 / - 1.02
(2 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 50.8 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-051-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF - 6.35mm - 50.8 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $86.23 AUD
Regular price Sale price $86.23 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
50.8
mm
+ 0.0 / - 1.02
(2 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 50.8 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-051-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF - 6.35mm - 50.8 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $86.23 AUD
Regular price Sale price $86.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
63.5
mm
+ 0.0 / - 1.02
(2.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 63.5 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-064-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF - 6.35mm - 63.5 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $102.23 AUD
Regular price Sale price $102.23 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
63.5
mm
+ 0.0 / - 1.02
(2.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 63.5 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-064-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF - 6.35mm - 63.5 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $102.23 AUD
Regular price Sale price $102.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(3 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Max Head Height
4.1
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 76.2 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-076-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF - 6.35mm - 76.2 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $118.95 AUD
Regular price Sale price $118.95 AUD
Per 50
Thread Size (C)
1/4-28 UNF (6.35mm)
Overall Length (L)
76.2
mm
+ 0.0 / - 1.55
(3 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
13.5
mm
Countersunk Screws - 1/4-28 UNF -6.35mm- 76.2 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 4.1 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 3.97 (5/32) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK064F-076-SK-C (50 Pcs) Countersunk Screws - 1/4-28 UNF - 6.35mm - 76.2 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $118.95 AUD
Regular price Sale price $118.95 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(0.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 12.7 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-013-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 12.7 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $40.05 AUD
Regular price Sale price $40.05 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
12.7
mm
+ 0.0 / - 0.76
(0.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 12.7 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-013-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 12.7 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $40.05 AUD
Regular price Sale price $40.05 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(0.626 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 15.9 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-016-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 15.9 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $41.59 AUD
Regular price Sale price $41.59 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
15.9
mm
+ 0.0 / - 0.76
(0.626 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 15.9 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-016-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 15.9 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $41.59 AUD
Regular price Sale price $41.59 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-019-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $43.23 AUD
Regular price Sale price $43.23 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-019-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $43.23 AUD
Regular price Sale price $43.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
Zinc Plated Steel
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-019-SK-CZ (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $71.86 AUD
Regular price Sale price $71.86 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
19.1
mm
+ 0.0 / - 0.76
(0.752 in.)
Material
Zinc Plated Steel
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-019-SK-CZ (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 19.1 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $71.86 AUD
Regular price Sale price $71.86 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-025-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $71.86 AUD
Regular price Sale price $71.86 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-025-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $71.86 AUD
Regular price Sale price $71.86 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
Zinc Plated Steel
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-025-SK-CZ (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $78.23 AUD
Regular price Sale price $78.23 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
25.4
mm
+ 0.0 / - 0.76
(1 in.)
Material
Zinc Plated Steel
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-025-SK-CZ (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 25.4 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $78.23 AUD
Regular price Sale price $78.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-032-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $83.05 AUD
Regular price Sale price $83.05 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-032-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $83.05 AUD
Regular price Sale price $83.05 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
Zinc Plated Steel
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-032-SK-CZ (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $86.23 AUD
Regular price Sale price $86.23 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
31.8
mm
+ 0.0 / - 1.02
(1.252 in.)
Material
Zinc Plated Steel
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-032-SK-CZ (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 31.8 mm - Zinc Plated Steel
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $86.23 AUD
Regular price Sale price $86.23 AUD
Per 50
View the product page first if you are unsure.
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Max Head Height
5.0
mm
Minimum Thread Length (l)
Not Specified
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 38.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-038-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 38.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $86.23 AUD
Regular price Sale price $86.23 AUD
Per 50
Thread Size (C)
5/16-18 BSW (7.94mm)
Overall Length (L)
38.1
mm
+ 0.0 / - 1.02
(1.5 in.)
Material
High Tensile Steel / Black Oxide
Max Head Diameter
16.7
mm
Countersunk Screws - 5/16-18 BSW -7.94mm- 38.1 mm - High Tensile Steel / Black Oxide
Material: High Tensile Steel Black Oxide    Max Head Height: 5.0 mm    Minimum Thread Length (l): Not Specified mm    Hex Key (s): 4.76 (3/16) mm   
Category: Screws - Countersunk - Socket - Steel
Part Number: SK079W-038-SK-C (50 Pcs) Countersunk Screws - 5/16-18 BSW -7.94mm- 38.1 mm - High Tensile Steel / Black Oxide
Out of Stock | Backorder Now | Orders can be expected around Fri, Jun 06, 2025
Regular price $86.23 AUD
Regular price Sale price $86.23 AUD
Per 50
View the product page first if you are unsure.