Keys - Machine - Carbon Steel

Keys -> Machine -> Carbon Steel
Width (W) Height (h) Length (L) Indicative
Image
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)
12.00
mm
+/ - 0.25
(Equiv. 0.472 in.)
Machine Keys - 4x4x12 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1200AO-C
Machine Keys - 4x4x12 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
Width (W) Height (h) Length (L) Indicative
Image
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)
12.00
mm
+/ - 0.25
(Equiv. 0.472 in.)
Machine Keys - 4x4x12 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1200AO-C
Machine Keys - 4x4x12 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
12.00
mm
+/ - 0.25
(Equiv. 0.472 in.)
Machine Keys - 4x4x12 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1200B-C (5 Pcs)
Machine Keys - 4x4x12 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 13, 2025
$11.23 AUD
$13.47 AUD $11.23 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

Backorder: Out of Stock.
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)
12.00
mm
+/ - 0.25
(Equiv. 0.472 in.)
Machine Keys - 4x4x12 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1200B-C (5 Pcs)
Machine Keys - 4x4x12 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 13, 2025
$11.23 AUD
$13.47 AUD $11.23 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

Backorder: Out of Stock.
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)
12.00
mm
+/ - 0.25
(Equiv. 0.472 in.)
Machine Keys - 4x4x12 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1200BO-C
Machine Keys - 4x4x12 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
12.00
mm
+/ - 0.25
(Equiv. 0.472 in.)
Machine Keys - 4x4x12 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1200BO-C
Machine Keys - 4x4x12 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1400AO-C
Machine Keys - 4x4x14 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1400AO-C
Machine Keys - 4x4x14 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1400BO-C
Machine Keys - 4x4x14 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1400BO-C
Machine Keys - 4x4x14 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Part Number: K-0400-0400-1400B-C (600 Pcs)
Machine Keys - 4x4x14 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$157.23 AUD
$188.67 AUD $157.23 AUD
Excludes GST and overseas Taxes & Duties
Per 600
Quantity Required

Backorder: Out of Stock.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel C45
Material: Carbon Steel C45    Finish: Plain    Tolerance Type: Standard    End Type: B (Square Ends)   
Part Number: K-0400-0400-1400B-C (600 Pcs)
Machine Keys - 4x4x14 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$157.23 AUD
$188.67 AUD $157.23 AUD
Excludes GST and overseas Taxes & Duties
Per 600
Quantity Required

Backorder: Out of Stock.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1400A-C (5 Pcs)
Machine Keys - 4x4x14 mm - Carbon Steel Key
39 units (195 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$4.32 AUD
$4.32 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

39 units (195 pcs) Available Now. Backorder if more than 39.
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)
14.00
mm
+/ - 0.25
(Equiv. 0.551 in.)
Machine Keys - 4x4x14 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1400A-C (5 Pcs)
Machine Keys - 4x4x14 mm - Carbon Steel Key
39 units (195 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$4.32 AUD
$4.32 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

39 units (195 pcs) Available Now. Backorder if more than 39.
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    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1500AO-C
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1500AO-C
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1500B-C
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1500B-C
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1500BO-C
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1500BO-C
Machine Keys - 4x4x15 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1500A-C (50 Pcs)
Machine Keys - 4x4x15 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$37.95 AUD
$45.55 AUD $37.95 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1500A-C (50 Pcs)
Machine Keys - 4x4x15 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$37.95 AUD
$45.55 AUD $37.95 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm

(Equiv. 0.157 in.)
Height (h)
4.00
mm

(Equiv. 0.157 in.)
Length (L)
16.00
mm

(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard    End Type: AB (1 end rounded, other end square)   
Part Number: K-0400-0400-1600AB-C
Machine Keys - 4x4x16 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 13, 2025
$1.50 AUD
$1.80 AUD $1.50 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm

(Equiv. 0.157 in.)
Height (h)
4.00
mm

(Equiv. 0.157 in.)
Length (L)
16.00
mm

(Equiv. 0.63 in.)
Machine Keys - 4x4x16 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard    End Type: AB (1 end rounded, other end square)   
Part Number: K-0400-0400-1600AB-C
Machine Keys - 4x4x16 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 13, 2025
$1.50 AUD
$1.80 AUD $1.50 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1600AO-C
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1600AO-C
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1600A-C (10 Pcs)
Machine Keys - 4x4x16 mm - Carbon Steel Key
46 units (460 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$7.95 AUD
$7.95 AUD
Excludes GST and overseas Taxes & Duties
Per 10
Quantity Required

46 units (460 pcs) Available Now. Backorder if more than 46.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1600A-C (10 Pcs)
Machine Keys - 4x4x16 mm - Carbon Steel Key
46 units (460 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$7.95 AUD
$7.95 AUD
Excludes GST and overseas Taxes & Duties
Per 10
Quantity Required

46 units (460 pcs) Available Now. Backorder if more than 46.
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    Tolerance Type: Standard    End Type: B (Square Ends)   
Part Number: K-0400-0400-1600B-C (100 Pcs)
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$29.50 AUD
$35.40 AUD $29.50 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Standard    End Type: B (Square Ends)   
Part Number: K-0400-0400-1600B-C (100 Pcs)
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$29.50 AUD
$35.40 AUD $29.50 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1600BO-C
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-1600BO-C
Machine Keys - 4x4x16 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1800A-C (50 Pcs)
Machine Keys - 4x4x18 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$34.59 AUD
$41.51 AUD $34.59 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-1800A-C (50 Pcs)
Machine Keys - 4x4x18 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$34.59 AUD
$41.51 AUD $34.59 AUD
Excludes GST and overseas Taxes & Duties
Per 50
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2000B-C (100 Pcs)
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$38.86 AUD
$46.64 AUD $38.86 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Standard Undersized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2000B-C (100 Pcs)
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Out of Stock | Backorder Now | Orders can be expected around Sat, Oct 04, 2025
$38.86 AUD
$46.64 AUD $38.86 AUD
Excludes GST and overseas Taxes & Duties
Per 100
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm

(Equiv. 0.157 in.)
Height (h)
4.00
mm

(Equiv. 0.157 in.)
Length (L)
20.00
mm

(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard    End Type: AB (1 end rounded, other end square)   
Part Number: K-0400-0400-2000AB-C
Machine Keys - 4x4x20 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 13, 2025
$1.50 AUD
$1.80 AUD $1.50 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
Width (W)
4.00
mm

(Equiv. 0.157 in.)
Height (h)
4.00
mm

(Equiv. 0.157 in.)
Length (L)
20.00
mm

(Equiv. 0.787 in.)
Machine Keys - 4x4x20 mm - Carbon Steel
Material: Carbon Steel    Finish: Plain    Tolerance Type: Standard    End Type: AB (1 end rounded, other end square)   
Part Number: K-0400-0400-2000AB-C
Machine Keys - 4x4x20 mm - Carbon Steel Key
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 13, 2025
$1.50 AUD
$1.80 AUD $1.50 AUD
Excludes GST and overseas Taxes & Duties
Each
Quantity Required

Backorder: Out of Stock.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000A-C (5 Pcs)
Machine Keys - 4x4x20 mm - Carbon Steel Key
86 units (430 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$5.14 AUD
$5.14 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

86 units (430 pcs) Available Now. Backorder if more than 86.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000A-C (5 Pcs)
Machine Keys - 4x4x20 mm - Carbon Steel Key
86 units (430 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$5.14 AUD
$5.14 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

86 units (430 pcs) Available Now. Backorder if more than 86.
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    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000AO-C
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2000AO-C
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2000BO-C
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2000BO-C
Machine Keys - 4x4x20 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2500A-C (5 Pcs)
Machine Keys - 4x4x25 mm - Carbon Steel Key
42 units (210 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$2.41 AUD
$4.49 AUD $2.41 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

42 units (210 pcs) Available Now. Backorder if more than 42.
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    Tolerance Type: Standard Undersized    End Type: A (Rounded Ends)   
Part Number: K-0400-0400-2500A-C (5 Pcs)
Machine Keys - 4x4x25 mm - Carbon Steel Key
42 units (210 pcs) Available Now | Further orders can be expected around Sat, Oct 04, 2025
$2.41 AUD
$4.49 AUD $2.41 AUD
Excludes GST and overseas Taxes & Duties
Per 5
Quantity Required

42 units (210 pcs) Available Now. Backorder if more than 42.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2500BO-C
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.
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    Tolerance Type: Oversized    End Type: B (Square Ends)   
Part Number: K-0400-0400-2500BO-C
Machine Keys - 4x4x25 mm - Carbon Steel C45 Key
Contact Us | Item Discontinued - Please contact us if you need a large quantity
Quantity Required

Contact Us. These are priced to quit. Please contact us for a quote if you require more.