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Collection: Keys - Machine

Keys (With Images)

Machine

63 Products in this selection

This category includes various types of machine keys.

An expanded range may be available on special order. Please enquire.

Keys - Machine

Small Parts & Bearings

Additional resources:
Keysteel Catalogue PDF

A more comprehensive listing may be found on the MBA Minibearings main store at Keys - Machine.

Width (W)	Height (h)	Length (L)	Indicative Image
Width (W) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Length (L) 6.00 mm _{+/- 0.25} (Equiv. 0.236 in.)
Material: Carbon Steel C45 Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0300-0300-0600A-C (Each) Machine Keys - 3x3x6 mm - Carbon Steel C45 Key 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 $1.00 AUD Regular price ~~$1.90 AUD~~ Sale price $1.00 AUD Unit price per Each
Width (W)	Height (h)	Length (L)	Indicative Image
Width (W) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Length (L) 6.00 mm _{+/- 0.25} (Equiv. 0.236 in.)
Material: Carbon Steel C45 Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0300-0300-0600A-C (Each) Machine Keys - 3x3x6 mm - Carbon Steel C45 Key 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 $1.00 AUD Regular price ~~$1.90 AUD~~ Sale price $1.00 AUD Unit price per Each
K-0300-0300-0600A-C (Each) --- Machine Keys - 3x3x6 mm - Carbon Steel C45 Key Sale K-0300-0300-0600A-C (Each) --- Machine Keys - 3x3x6 mm - Carbon Steel C45 Key Regular price $1.00 AUD Regular price ~~$1.90 AUD~~ Sale price $1.00 AUD Unit price per 1 Available Now Sale
Width (W) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Length (L) 20.00 mm _{+/- 0.25} (Equiv. 0.787 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0300-0300-2000A-C (PK-10) Machine Keys - 3x3x20 mm - Carbon Steel Key 127 units (1270 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Per 10
Width (W) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Length (L) 20.00 mm _{+/- 0.25} (Equiv. 0.787 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0300-0300-2000A-C (PK-10) Machine Keys - 3x3x20 mm - Carbon Steel Key 127 units (1270 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Per 10 View the product page first if you are unsure.
K-0300-0300-2000A-C (PK-10) --- Machine Keys - 3x3x20 mm - Carbon Steel Key K-0300-0300-2000A-C (PK-10) --- Machine Keys - 3x3x20 mm - Carbon Steel Key Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per 127 Available Now
Width (W) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Length (L) 25.00 mm _{+/- 0.25} (Equiv. 0.984 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0300-0300-2500A-C (PK-5) Machine Keys - 3x3x25 mm - Carbon Steel Key 8 units (40 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Per 5
Width (W) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Height (h) 3.00 mm _{+ 0 / - 0.025} (Equiv. 0.118 in.)	Length (L) 25.00 mm _{+/- 0.25} (Equiv. 0.984 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0300-0300-2500A-C (PK-5) Machine Keys - 3x3x25 mm - Carbon Steel Key 8 units (40 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0300-0300-2500A-C (PK-5) --- Machine Keys - 3x3x25 mm - Carbon Steel Key K-0300-0300-2500A-C (PK-5) --- Machine Keys - 3x3x25 mm - Carbon Steel Key Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per 8 Available Now
Width (W) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Length (L) 12.70 mm _{+/- 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0318-0318-1270A-C (Each) Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key 44 Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $1.23 AUD Regular price ~~$2.07 AUD~~ Sale price $1.23 AUD Unit price per Each
Width (W) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Length (L) 12.70 mm _{+/- 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0318-0318-1270A-C (Each) Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key 44 Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $1.23 AUD Regular price ~~$2.07 AUD~~ Sale price $1.23 AUD Unit price per Each View the product page first if you are unsure.
K-0318-0318-1270A-C (Each) --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key Sale K-0318-0318-1270A-C (Each) --- Machine Keys - 3.18x3.18x12.7 mm - Carbon Steel Key Regular price $1.23 AUD Regular price ~~$2.07 AUD~~ Sale price $1.23 AUD Unit price per 44 Available Now Sale
Width (W) 3.18 mm	Height (h) 3.18 mm	Length (L) 25.40 mm
Material: Stainless Steel 316 (Similar to A4, 18-10) Category: Keys - Machine - Stainless Steel
Part Number: K-0318-0318-2540-KS6 (PK-10) Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key 20 units (200 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $7.59 AUD Regular price Sale price $7.59 AUD Unit price per Per 10
Width (W) 3.18 mm	Height (h) 3.18 mm	Length (L) 25.40 mm
Material: Stainless Steel 316 (Similar to A4, 18-10) Category: Keys - Machine - Stainless Steel
Part Number: K-0318-0318-2540-KS6 (PK-10) Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key 20 units (200 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $7.59 AUD Regular price Sale price $7.59 AUD Unit price per Per 10 View the product page first if you are unsure.
K-0318-0318-2540-KS6 (PK-10) --- Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key K-0318-0318-2540-KS6 (PK-10) --- Machine Keys - 3.18x3.18x25.4 mm - Stainless Steel 316 Similar to A4, 18-10 Key Regular price $7.59 AUD Regular price Sale price $7.59 AUD Unit price per 20 Available Now
Width (W) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Length (L) 25.40 mm _{+/- 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Category: Keys - Machine - Carbon Steel
Part Number: K-0318-0318-2540B-Z (PK-5) Machine Keys - 3.18x3.18x25.4 mm - Carbon Steel C45 Zinc Plated Key 50 units (250 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Per 5
Width (W) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Height (h) 3.18 mm _{+ 0 / - 0.051} (Equiv. 0.125 in.)	Length (L) 25.40 mm _{+/- 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Category: Keys - Machine - Carbon Steel
Part Number: K-0318-0318-2540B-Z (PK-5) Machine Keys - 3.18x3.18x25.4 mm - Carbon Steel C45 Zinc Plated Key 50 units (250 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0318-0318-2540B-Z (PK-5) --- Machine Keys - 3.18x3.18x25.4 mm - Carbon Steel C45 Zinc Plated Key K-0318-0318-2540B-Z (PK-5) --- Machine Keys - 3.18x3.18x25.4 mm - Carbon Steel C45 Zinc Plated Key Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per 50 Available Now
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) 8.00 mm _{+/- 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-0800A-C (PK-10) Machine Keys - 4x4x8 mm - Carbon Steel Key 18 units (180 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Per 10
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) 8.00 mm _{+/- 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-0800A-C (PK-10) Machine Keys - 4x4x8 mm - Carbon Steel Key 18 units (180 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Per 10 View the product page first if you are unsure.
K-0400-0400-0800A-C (PK-10) --- Machine Keys - 4x4x8 mm - Carbon Steel Key K-0400-0400-0800A-C (PK-10) --- Machine Keys - 4x4x8 mm - Carbon Steel Key Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per 18 Available Now
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) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1000A-C (PK-10) Machine Keys - 4x4x10 mm - Carbon Steel Key 14 units (140 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per Per 10
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) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1000A-C (PK-10) Machine Keys - 4x4x10 mm - Carbon Steel Key 14 units (140 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per Per 10 View the product page first if you are unsure.
K-0400-0400-1000A-C (PK-10) --- Machine Keys - 4x4x10 mm - Carbon Steel Key K-0400-0400-1000A-C (PK-10) --- Machine Keys - 4x4x10 mm - Carbon Steel Key Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per 14 Available Now
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) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-1000A-3 (PK-50) Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key 2 units (100 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $127.50 AUD Regular price ~~$153.00 AUD~~ Sale price $127.50 AUD Unit price per Per 50
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) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-1000A-3 (PK-50) Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key 2 units (100 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $127.50 AUD Regular price ~~$153.00 AUD~~ Sale price $127.50 AUD Unit price per Per 50 View the product page first if you are unsure.
K-0400-0400-1000A-3 (PK-50) --- Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key Sale K-0400-0400-1000A-3 (PK-50) --- Machine Keys - 4x4x10 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key Regular price $127.50 AUD Regular price ~~$153.00 AUD~~ Sale price $127.50 AUD Unit price per 2 Available Now Sale
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1400A-C (PK-5) Machine Keys - 4x4x14 mm - Carbon Steel Key 35 units (175 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per Per 5
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1400A-C (PK-5) Machine Keys - 4x4x14 mm - Carbon Steel Key 35 units (175 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0400-0400-1400A-C (PK-5) --- Machine Keys - 4x4x14 mm - Carbon Steel Key K-0400-0400-1400A-C (PK-5) --- Machine Keys - 4x4x14 mm - Carbon Steel Key Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per 35 Available Now
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600A-C (PK-10) Machine Keys - 4x4x16 mm - Carbon Steel Key 46 units (460 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.77 AUD Regular price Sale price $5.77 AUD Unit price per Per 10
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-1600A-C (PK-10) Machine Keys - 4x4x16 mm - Carbon Steel Key 46 units (460 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $5.77 AUD Regular price Sale price $5.77 AUD Unit price per Per 10 View the product page first if you are unsure.
K-0400-0400-1600A-C (PK-10) --- Machine Keys - 4x4x16 mm - Carbon Steel Key K-0400-0400-1600A-C (PK-10) --- Machine Keys - 4x4x16 mm - Carbon Steel Key Regular price $5.77 AUD Regular price Sale price $5.77 AUD Unit price per 46 Available Now
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.)
Material: Stainless Steel 316 (Similar to A4, 18-10) Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-1800A-6 (Each) Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key 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 Unit price per Each
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.)
Material: Stainless Steel 316 (Similar to A4, 18-10) Category: Keys - Machine - Stainless Steel
Part Number: K-0400-0400-1800A-6 (Each) Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key 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 Unit price per Each
K-0400-0400-1800A-6 (Each) --- Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key Sale K-0400-0400-1800A-6 (Each) --- Machine Keys - 4x4x18 mm - Stainless Steel 316 Similar to A4, 18-10 Key Regular price $2.00 AUD Regular price ~~$3.80 AUD~~ Sale price $2.00 AUD Unit price per 1 Available Now Sale
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000A-C (PK-5) Machine Keys - 4x4x20 mm - Carbon Steel Key 82 units (410 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per Per 5
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2000A-C (PK-5) Machine Keys - 4x4x20 mm - Carbon Steel Key 82 units (410 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0400-0400-2000A-C (PK-5) --- Machine Keys - 4x4x20 mm - Carbon Steel Key K-0400-0400-2000A-C (PK-5) --- Machine Keys - 4x4x20 mm - Carbon Steel Key Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per 82 Available Now
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2500A-C (PK-5) Machine Keys - 4x4x25 mm - Carbon Steel Key 37 units (185 pcs) Available Now \| Further orders can be expected around Sat, Aug 15, 2026 Regular price $1.77 AUD Regular price ~~$3.19 AUD~~ Sale price $1.77 AUD Unit price per Per 5
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.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0400-0400-2500A-C (PK-5) Machine Keys - 4x4x25 mm - Carbon Steel Key 37 units (185 pcs) Available Now \| Further orders can be expected around Sat, Aug 15, 2026 Regular price $1.77 AUD Regular price ~~$3.19 AUD~~ Sale price $1.77 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0400-0400-2500A-C (PK-5) --- Machine Keys - 4x4x25 mm - Carbon Steel Key Sale K-0400-0400-2500A-C (PK-5) --- Machine Keys - 4x4x25 mm - Carbon Steel Key Regular price $1.77 AUD Regular price ~~$3.19 AUD~~ Sale price $1.77 AUD Unit price per 37 Available Now Sale
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 12.70 mm _{+/- 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-1270A-C (Each) Machine Keys - 4.76x4.76x12.7 mm - Carbon Steel Key 2 Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $0.86 AUD Regular price ~~$1.58 AUD~~ Sale price $0.86 AUD Unit price per Each
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 12.70 mm _{+/- 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-1270A-C (Each) Machine Keys - 4.76x4.76x12.7 mm - Carbon Steel Key 2 Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $0.86 AUD Regular price ~~$1.58 AUD~~ Sale price $0.86 AUD Unit price per Each View the product page first if you are unsure.
K-0476-0476-1270A-C (Each) --- Machine Keys - 4.76x4.76x12.7 mm - Carbon Steel Key Sale K-0476-0476-1270A-C (Each) --- Machine Keys - 4.76x4.76x12.7 mm - Carbon Steel Key Regular price $0.86 AUD Regular price ~~$1.58 AUD~~ Sale price $0.86 AUD Unit price per 2 Available Now Sale
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 19.05 mm _{+/- 0.25} (Equiv. 0.75 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-1905A-C (PK-5) Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel Key 7 units (35 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $4.77 AUD Regular price Sale price $4.77 AUD Unit price per Per 5
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 19.05 mm _{+/- 0.25} (Equiv. 0.75 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-1905A-C (PK-5) Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel Key 7 units (35 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $4.77 AUD Regular price Sale price $4.77 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0476-0476-1905A-C (PK-5) --- Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel Key K-0476-0476-1905A-C (PK-5) --- Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel Key Regular price $4.77 AUD Regular price Sale price $4.77 AUD Unit price per 7 Available Now
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 25.40 mm _{+/- 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-2540B-Z (PK-5) Machine Keys - 4.76x4.76x25.4 mm - Carbon Steel C45 Zinc Plated Key 49 units (245 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per Per 5
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 25.40 mm _{+/- 0.25} (Equiv. 1 in.)
Material: Carbon Steel C45 Zinc Plated Finish: Zinc Electroplate Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-2540B-Z (PK-5) Machine Keys - 4.76x4.76x25.4 mm - Carbon Steel C45 Zinc Plated Key 49 units (245 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0476-0476-2540B-Z (PK-5) --- Machine Keys - 4.76x4.76x25.4 mm - Carbon Steel C45 Zinc Plated Key K-0476-0476-2540B-Z (PK-5) --- Machine Keys - 4.76x4.76x25.4 mm - Carbon Steel C45 Zinc Plated Key Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per 49 Available Now
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 19.05 mm _{+/- 0.25} (Equiv. 0.75 in.)
Material: Carbon Steel C45 Finish: Dry Rust Inhibitor Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-1905B-C (PK-10) Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel C45 Key 2 units (20 pcs) Available Now \| Item Discontinued - Up to 2 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $12.00 AUD Regular price ~~$22.80 AUD~~ Sale price $12.00 AUD Unit price per Per 10
Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Height (h) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 19.05 mm _{+/- 0.25} (Equiv. 0.75 in.)
Material: Carbon Steel C45 Finish: Dry Rust Inhibitor Category: Keys - Machine - Carbon Steel
Part Number: K-0476-0476-1905B-C (PK-10) Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel C45 Key 2 units (20 pcs) Available Now \| Item Discontinued - Up to 2 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $12.00 AUD Regular price ~~$22.80 AUD~~ Sale price $12.00 AUD Unit price per Per 10
K-0476-0476-1905B-C (PK-10) --- Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel C45 Key Sale K-0476-0476-1905B-C (PK-10) --- Machine Keys - 4.76x4.76x19.05 mm - Carbon Steel C45 Key Regular price $12.00 AUD Regular price ~~$22.80 AUD~~ Sale price $12.00 AUD Unit price per 2 Available Now Sale
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1000A-C (PK-5) Machine Keys - 5x5x10 mm - Carbon Steel Key 99 units (495 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.05 AUD Regular price Sale price $3.05 AUD Unit price per Per 5
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1000A-C (PK-5) Machine Keys - 5x5x10 mm - Carbon Steel Key 99 units (495 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.05 AUD Regular price Sale price $3.05 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0500-0500-1000A-C (PK-5) --- Machine Keys - 5x5x10 mm - Carbon Steel Key K-0500-0500-1000A-C (PK-5) --- Machine Keys - 5x5x10 mm - Carbon Steel Key Regular price $3.05 AUD Regular price Sale price $3.05 AUD Unit price per 99 Available Now
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 12.00 mm _{+/- 0.25} (Equiv. 0.472 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1200A-C (PK-5) Machine Keys - 5x5x12 mm - Carbon Steel Key 32 units (160 pcs) Available Now \| Further orders can be expected around Wed, Oct 07, 2026 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Per 5
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 12.00 mm _{+/- 0.25} (Equiv. 0.472 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1200A-C (PK-5) Machine Keys - 5x5x12 mm - Carbon Steel Key 32 units (160 pcs) Available Now \| Further orders can be expected around Wed, Oct 07, 2026 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0500-0500-1200A-C (PK-5) --- Machine Keys - 5x5x12 mm - Carbon Steel Key K-0500-0500-1200A-C (PK-5) --- Machine Keys - 5x5x12 mm - Carbon Steel Key Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per 32 Available Now
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 14.00 mm _{+/- 0.25} (Equiv. 0.551 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1400A-C (PK-5) Machine Keys - 5x5x14 mm - Carbon Steel Key 40 units (200 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Per 5
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 14.00 mm _{+/- 0.25} (Equiv. 0.551 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1400A-C (PK-5) Machine Keys - 5x5x14 mm - Carbon Steel Key 40 units (200 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0500-0500-1400A-C (PK-5) --- Machine Keys - 5x5x14 mm - Carbon Steel Key K-0500-0500-1400A-C (PK-5) --- Machine Keys - 5x5x14 mm - Carbon Steel Key Regular price $4.05 AUD Regular price Sale price $4.05 AUD Unit price per 40 Available Now
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 15.00 mm _{+/- 0.25} (Equiv. 0.591 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1500A-C (PK-5) Machine Keys - 5x5x15 mm - Carbon Steel Key 42 units (210 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $2.14 AUD Regular price ~~$4.00 AUD~~ Sale price $2.14 AUD Unit price per Per 5
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 15.00 mm _{+/- 0.25} (Equiv. 0.591 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1500A-C (PK-5) Machine Keys - 5x5x15 mm - Carbon Steel Key 42 units (210 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $2.14 AUD Regular price ~~$4.00 AUD~~ Sale price $2.14 AUD Unit price per Per 5 View the product page first if you are unsure.
K-0500-0500-1500A-C (PK-5) --- Machine Keys - 5x5x15 mm - Carbon Steel Key Sale K-0500-0500-1500A-C (PK-5) --- Machine Keys - 5x5x15 mm - Carbon Steel Key Regular price $2.14 AUD Regular price ~~$4.00 AUD~~ Sale price $2.14 AUD Unit price per 42 Available Now Sale
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 16.00 mm _{+/- 0.25} (Equiv. 0.63 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1600A-C (PK-50) Machine Keys - 5x5x16 mm - Carbon Steel Key 8 units (400 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $19.05 AUD Regular price ~~$22.85 AUD~~ Sale price $19.05 AUD Unit price per Per 50
Width (W) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.030} (Equiv. 0.197 in.)	Length (L) 16.00 mm _{+/- 0.25} (Equiv. 0.63 in.)
Material: Carbon Steel Finish: Plain Category: Keys - Machine - Carbon Steel
Part Number: K-0500-0500-1600A-C (PK-50) Machine Keys - 5x5x16 mm - Carbon Steel Key 8 units (400 pcs) Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $19.05 AUD Regular price ~~$22.85 AUD~~ Sale price $19.05 AUD Unit price per Per 50 View the product page first if you are unsure.
K-0500-0500-1600A-C (PK-50) --- Machine Keys - 5x5x16 mm - Carbon Steel Key Sale K-0500-0500-1600A-C (PK-50) --- Machine Keys - 5x5x16 mm - Carbon Steel Key Regular price $19.05 AUD Regular price ~~$22.85 AUD~~ Sale price $19.05 AUD Unit price per 8 Available Now Sale
Width (W) 5.00 mm _{+ 0 / - 0.051} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.051} (Equiv. 0.197 in.)	Length (L) 16.00 mm _{+/- 0.25} (Equiv. 0.63 in.)
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Machine - Stainless Steel
Part Number: K-0500-0500-1600A-3 (Each) Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key 45 Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.14 AUD Regular price Sale price $3.14 AUD Unit price per Each
Width (W) 5.00 mm _{+ 0 / - 0.051} (Equiv. 0.197 in.)	Height (h) 5.00 mm _{+ 0 / - 0.051} (Equiv. 0.197 in.)	Length (L) 16.00 mm _{+/- 0.25} (Equiv. 0.63 in.)
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Machine - Stainless Steel
Part Number: K-0500-0500-1600A-3 (Each) Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key 45 Available Now \| Further orders can be expected around Tue, Jul 28, 2026 Regular price $3.14 AUD Regular price Sale price $3.14 AUD Unit price per Each View the product page first if you are unsure.
K-0500-0500-1600A-3 (Each) --- Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key K-0500-0500-1600A-3 (Each) --- Machine Keys - 5x5x16 mm - Stainless Steel 303 Similar to A2, 304, 18-8 Key Regular price $3.14 AUD Regular price Sale price $3.14 AUD Unit price per 45 Available Now

Small Parts & Bearings Pty Ltd - 3A / 8 Boyland Avenue, Coopers Plains, Queensland, Australia. (ABN: 79 121 865 414)