Collection: Keys - Machine

Keys -> Machine
Width (W) Height (h) Length (L) Indicative
Image
Machine Keys - 4x4x15 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 116
Part Number: K-0400-0400-1500A-C (PK-375)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $388.77 AUD
Regular price Sale price $388.77 AUD
Priced, Stocked and Sold Per 375 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Width (W) Height (h) Length (L) Indicative
Image
Machine Keys - 4x4x15 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 116
Part Number: K-0400-0400-1500A-C (PK-375)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $388.77 AUD
Regular price Sale price $388.77 AUD
Priced, Stocked and Sold Per 375 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1500AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1500AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x16 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600A-C (PK-10)
46 units (460 pcs) Available Now | Further orders can be expected around Tue, Jul 07, 2026
Regular price $5.77 AUD
Regular price Sale price $5.77 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 46 available can be backordered.
Machine Keys - 4x4x16 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600A-C (PK-10)
46 units (460 pcs) Available Now | Further orders can be expected around Tue, Jul 07, 2026
Regular price $5.77 AUD
Regular price Sale price $5.77 AUD
Priced, Stocked and Sold Per 10 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

46 units (460 pcs) Available Now. Backorder if more than 46.
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1500B-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1500B-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1500BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
15.00
mm
+/- 0.25
(Equiv. 0.591 in.)
Machine Keys - 4x4x15 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1500BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x16 mm - Carbon Steel Key
Width (W)
4.00
mm
Height (h)
4.00
mm
Length (L)
16.00
mm
Machine Keys - 4x4x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600AB-C (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
Regular price $1.32 AUD
Regular price $1.58 AUD Sale price $1.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x16 mm - Carbon Steel Key
Width (W)
4.00
mm
Height (h)
4.00
mm
Length (L)
16.00
mm
Machine Keys - 4x4x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600AB-C (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
Regular price $1.32 AUD
Regular price $1.58 AUD Sale price $1.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 1129
Part Number: K-0400-0400-1600B-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $24.95 AUD
Regular price $29.95 AUD Sale price $24.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 1129
Part Number: K-0400-0400-1600B-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $24.95 AUD
Regular price $29.95 AUD Sale price $24.95 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
16.00
mm
+/- 0.25
(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)   
Category: Keys - Machine - Stainless Steel
Deleted Item. Available while stocks last.
Part Number: K-0400-0400-1800A-6 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.00 AUD
Regular price $3.80 AUD Sale price $2.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)   
Category: Keys - Machine - Stainless Steel
Deleted Item. Available while stocks last.
Part Number: K-0400-0400-1800A-6 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.00 AUD
Regular price $3.80 AUD Sale price $2.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)   
Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-2000A-3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 2026
Regular price $4.41 AUD
Regular price Sale price $4.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)   
Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-2000A-3 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 2026
Regular price $4.41 AUD
Regular price Sale price $4.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)   
Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-2000A-6 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 2026
Regular price $25.77 AUD
Regular price $30.93 AUD Sale price $25.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)   
Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-2000A-6 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Mon, Jul 13, 2026
Regular price $25.77 AUD
Regular price $30.93 AUD Sale price $25.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Carbon Steel Key
Width (W)
4.00
mm
Height (h)
4.00
mm
Length (L)
20.00
mm
Machine Keys - 4x4x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000AB-C (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
Regular price $1.41 AUD
Regular price $1.69 AUD Sale price $1.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Carbon Steel Key
Width (W)
4.00
mm
Height (h)
4.00
mm
Length (L)
20.00
mm
Machine Keys - 4x4x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000AB-C (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
Regular price $1.41 AUD
Regular price $1.69 AUD Sale price $1.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 15578
Part Number: K-0400-0400-2000A-C (PK-5)
82 units (410 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 82 available can be backordered.
Machine Keys - 4x4x20 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 15578
Part Number: K-0400-0400-2000A-C (PK-5)
82 units (410 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $3.77 AUD
Regular price Sale price $3.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

82 units (410 pcs) Available Now. Backorder if more than 82.
Machine Keys - 4x4x18 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 1838
Part Number: K-0400-0400-1800A-C (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $29.77 AUD
Regular price $35.73 AUD Sale price $29.77 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x18 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
18.00
mm
+/- 0.25
(Equiv. 0.709 in.)
Machine Keys - 4x4x18 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 1838
Part Number: K-0400-0400-1800A-C (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $29.77 AUD
Regular price $35.73 AUD Sale price $29.77 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 772
Part Number: K-0400-0400-2000B-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $33.59 AUD
Regular price $40.31 AUD Sale price $33.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
20.00
mm
+/- 0.25
(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 772
Part Number: K-0400-0400-2000B-C (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $33.59 AUD
Regular price $40.31 AUD Sale price $33.59 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)   
Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-2500A-6 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 316 Similar to A4, 18-10
Material: Stainless Steel 316 (Similar to A4, 18-10)   
Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-2500A-6 (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)   
Category: Keys - Machine - Stainless Steel
Additional stock available from USA subject to Prior Sale = 317
Part Number: K-0400-0400-2500B-3 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $59.50 AUD
Regular price $71.40 AUD Sale price $59.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key
Width (W)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.051
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)   
Category: Keys - Machine - Stainless Steel
Additional stock available from USA subject to Prior Sale = 317
Part Number: K-0400-0400-2500B-3 (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $59.50 AUD
Regular price $71.40 AUD Sale price $59.50 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x25 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 341
Part Number: K-0400-0400-2500A-C (PK-5)
37 units (185 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $1.77 AUD
Regular price $3.19 AUD Sale price $1.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 37 available can be backordered.
Machine Keys - 4x4x25 mm - Carbon Steel Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 341
Part Number: K-0400-0400-2500A-C (PK-5)
37 units (185 pcs) Available Now | Further orders can be expected around Thu, Jul 02, 2026
Regular price $1.77 AUD
Regular price $3.19 AUD Sale price $1.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

37 units (185 pcs) Available Now. Backorder if more than 37.
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2500BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2500BO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 5388
Part Number: K-0400-0400-2500B-C (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $11.95 AUD
Regular price $14.35 AUD Sale price $11.95 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0 / - 0.030
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Additional stock available from USA subject to Prior Sale = 5388
Part Number: K-0400-0400-2500B-C (PK-50)
Out of Stock | Backorder Now | Backorder now for delivery around Thu, Jul 02, 2026
Regular price $11.95 AUD
Regular price $14.35 AUD Sale price $11.95 AUD
Priced, Stocked and Sold Per 50 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2500AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Width (W)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Height (h)
4.00
mm
+ 0.030 / - 0.0
(Equiv. 0.157 in.)
Length (L)
25.00
mm
+/- 0.25
(Equiv. 0.984 in.)
Machine Keys - 4x4x25 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain   
Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2500AO-C (Each)
Contact Us | Special Order Only - Please contact us if you need a large quantity | Backorder now for delivery around Tue, Feb 27, 2029