Search by part number, size, or description.

If there are no results in the search drop-down, just hit enter to see matches displayed on the page.

Click the category shown above search results to see items similar to the product displayed.

Collection: Keys

Keys (With Images)

158 Products in this selection

Combined category including sub-categories of keys. These include machine, woodruff, and gib head.

Small Parts & Bearings

Additional resources:
Keysteel Catalogue PDF

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

Nominal Key Height (H1)	Width (W)	Length (L)	Head Height (h2) Approx.	Approx (B)	Approx (H3)	Indicative Image
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-062-153-C (PK-10) Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Key 4 units (40 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $5.32 AUD Regular price Sale price $5.32 AUD Unit price per Per 10
Nominal Key Height (H1)	Width (W)	Length (L)	Head Height (h2) Approx.	Indicative Image
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-062-153-C (PK-10) Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Key 4 units (40 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $5.32 AUD Regular price Sale price $5.32 AUD Unit price per Per 10 View the product page first if you are unsure.
Keys - Woodruff KW-040-062-153-C (PK-10) --- Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Key KW-040-062-153-C (PK-10) --- Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Key Regular price $5.32 AUD Regular price Sale price $5.32 AUD Unit price per 4 Available Now
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Carbon Steel C45 Hardened Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-062-153-CH (PK-2) Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Hardened Key 75 units (150 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $1.32 AUD Regular price ~~$2.30 AUD~~ Sale price $1.32 AUD Unit price per Per 2
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Carbon Steel C45 Hardened Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-062-153-CH (PK-2) Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Hardened Key 75 units (150 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $1.32 AUD Regular price ~~$2.30 AUD~~ Sale price $1.32 AUD Unit price per Per 2 View the product page first if you are unsure.
Keys - Woodruff KW-040-062-153-CH (PK-2) --- Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Hardened Key Sale KW-040-062-153-CH (PK-2) --- Woodruff Keys - 3.97x6.2x15.29 mm Plain - Carbon Steel C45 Hardened Key Regular price $1.32 AUD Regular price ~~$2.30 AUD~~ Sale price $1.32 AUD Unit price per 75 Available Now Sale
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Woodruff - 303 Stainless Steel
Part Number: KW-040-078-185-S3 (Each) Woodruff Keys - 3.97x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key 10 Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $4.86 AUD Regular price ~~$8.66 AUD~~ Sale price $4.86 AUD Unit price per Each
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Woodruff - 303 Stainless Steel
Part Number: KW-040-078-185-S3 (Each) Woodruff Keys - 3.97x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key 10 Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $4.86 AUD Regular price ~~$8.66 AUD~~ Sale price $4.86 AUD Unit price per Each View the product page first if you are unsure.
Keys - Woodruff KW-040-078-185-S3 (Each) --- Woodruff Keys - 3.97x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key Sale KW-040-078-185-S3 (Each) --- Woodruff Keys - 3.97x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key Regular price $4.86 AUD Regular price ~~$8.66 AUD~~ Sale price $4.86 AUD Unit price per 10 Available Now Sale
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-078-185-C (Each) Woodruff Keys - 3.97x7.8x18.54 mm Plain - Carbon Steel C45 Key 481 Available Now \| Further orders can be expected around Tue, Aug 18, 2026 Regular price $1.23 AUD Regular price Sale price $1.23 AUD Unit price per Each
Nominal Key Height (H1) 3.97 mm _{+/- 0.025} (Equiv. 0.156 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-078-185-C (Each) Woodruff Keys - 3.97x7.8x18.54 mm Plain - Carbon Steel C45 Key 481 Available Now \| Further orders can be expected around Tue, Aug 18, 2026 Regular price $1.23 AUD Regular price Sale price $1.23 AUD Unit price per Each View the product page first if you are unsure.
Keys - Woodruff KW-040-078-185-C (Each) --- Woodruff Keys - 3.97x7.8x18.54 mm Plain - Carbon Steel C45 Key KW-040-078-185-C (Each) --- Woodruff Keys - 3.97x7.8x18.54 mm Plain - Carbon Steel C45 Key Regular price $1.23 AUD Regular price Sale price $1.23 AUD Unit price per 481 Available Now
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 8.00 mm _{+/- 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Per 10
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 8.00 mm _{+/- 0.25} (Equiv. 0.315 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $5.14 AUD Regular price Sale price $5.14 AUD Unit price per Per 10
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 10.00 mm _{+/- 0.25} (Equiv. 0.394 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.051} (Equiv. 0.157 in.)	Width (W) 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 Sat, Jul 25, 2026 Regular price $127.50 AUD Regular price ~~$153.00 AUD~~ Sale price $127.50 AUD Unit price per Per 50
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.051} (Equiv. 0.157 in.)	Width (W) 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 14.00 mm _{+/- 0.25} (Equiv. 0.551 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per Per 5
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 14.00 mm _{+/- 0.25} (Equiv. 0.551 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 16.00 mm _{+/- 0.25} (Equiv. 0.63 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $5.77 AUD Regular price Sale price $5.77 AUD Unit price per Per 10
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 16.00 mm _{+/- 0.25} (Equiv. 0.63 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 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
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 20.00 mm _{+/- 0.25} (Equiv. 0.787 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per Per 5
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 20.00 mm _{+/- 0.25} (Equiv. 0.787 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 25.00 mm _{+/- 0.25} (Equiv. 0.984 in.)
Material: Carbon Steel Taper: 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 Wed, Aug 12, 2026 Regular price $1.77 AUD Regular price ~~$3.19 AUD~~ Sale price $1.77 AUD Unit price per Per 5
Nominal Key Height (H1) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Width (W) 4.00 mm _{+ 0 / - 0.030} (Equiv. 0.157 in.)	Length (L) 25.00 mm _{+/- 0.25} (Equiv. 0.984 in.)
Material: Carbon Steel Taper: 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 Wed, Aug 12, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.00 mm _{+/- 0.025} (Equiv. 0.157 in.)	Width (W) 5.0 mm _{+/- 0.250} (Equiv. 0.197 in.)	Length (L) 12.65 mm	Head Height (h2) Approx. 13.00 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-050-127-C (PK-5) Woodruff Keys - 4x5x12.65 mm Plain - Carbon Steel C45 Key 6 units (30 pcs) Available Now \| Further orders can be expected around Thu, Jul 30, 2026 Regular price $6.77 AUD Regular price Sale price $6.77 AUD Unit price per Per 5
Nominal Key Height (H1) 4.00 mm _{+/- 0.025} (Equiv. 0.157 in.)	Width (W) 5.0 mm _{+/- 0.250} (Equiv. 0.197 in.)	Length (L) 12.65 mm	Head Height (h2) Approx. 13.00 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-050-127-C (PK-5) Woodruff Keys - 4x5x12.65 mm Plain - Carbon Steel C45 Key 6 units (30 pcs) Available Now \| Further orders can be expected around Thu, Jul 30, 2026 Regular price $6.77 AUD Regular price Sale price $6.77 AUD Unit price per Per 5 View the product page first if you are unsure.
Keys - Woodruff KW-040-050-127-C (PK-5) --- Woodruff Keys - 4x5x12.65 mm Plain - Carbon Steel C45 Key KW-040-050-127-C (PK-5) --- Woodruff Keys - 4x5x12.65 mm Plain - Carbon Steel C45 Key Regular price $6.77 AUD Regular price Sale price $6.77 AUD Unit price per 6 Available Now
Nominal Key Height (H1) 4.00 mm _{+/- 0.025} (Equiv. 0.157 in.)	Width (W) 6.5 mm _{+/- 0.250} (Equiv. 0.256 in.)	Length (L) 15.72 mm	Head Height (h2) Approx. 16.00 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-065-157-C (PK-2) Woodruff Keys - 4x6.5x15.72 mm Plain - Carbon Steel C45 Key 30 units (60 pcs) Available Now \| Further orders can be expected around Wed, Aug 05, 2026 Regular price $7.77 AUD Regular price Sale price $7.77 AUD Unit price per Per 2
Nominal Key Height (H1) 4.00 mm _{+/- 0.025} (Equiv. 0.157 in.)	Width (W) 6.5 mm _{+/- 0.250} (Equiv. 0.256 in.)	Length (L) 15.72 mm	Head Height (h2) Approx. 16.00 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-065-157-C (PK-2) Woodruff Keys - 4x6.5x15.72 mm Plain - Carbon Steel C45 Key 30 units (60 pcs) Available Now \| Further orders can be expected around Wed, Aug 05, 2026 Regular price $7.77 AUD Regular price Sale price $7.77 AUD Unit price per Per 2 View the product page first if you are unsure.
Keys - Woodruff KW-040-065-157-C (PK-2) --- Woodruff Keys - 4x6.5x15.72 mm Plain - Carbon Steel C45 Key KW-040-065-157-C (PK-2) --- Woodruff Keys - 4x6.5x15.72 mm Plain - Carbon Steel C45 Key Regular price $7.77 AUD Regular price Sale price $7.77 AUD Unit price per 30 Available Now
Nominal Key Height (H1) 4.00 mm	Width (W) 8.0 mm	Length (L) 19.60 mm	Head Height (h2) Approx. 20.00 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-080-196-C (PK-2) Woodruff Keys - 4x8x19.6 mm Plain - Carbon Steel C45 Key 48 units (96 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $5.41 AUD Regular price Sale price $5.41 AUD Unit price per Per 2
Nominal Key Height (H1) 4.00 mm	Width (W) 8.0 mm	Length (L) 19.60 mm	Head Height (h2) Approx. 20.00 mm
Material: Carbon Steel C45 Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-040-080-196-C (PK-2) Woodruff Keys - 4x8x19.6 mm Plain - Carbon Steel C45 Key 48 units (96 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $5.41 AUD Regular price Sale price $5.41 AUD Unit price per Per 2 View the product page first if you are unsure.
Keys - Woodruff KW-040-080-196-C (PK-2) --- Woodruff Keys - 4x8x19.6 mm Plain - Carbon Steel C45 Key KW-040-080-196-C (PK-2) --- Woodruff Keys - 4x8x19.6 mm Plain - Carbon Steel C45 Key Regular price $5.41 AUD Regular price Sale price $5.41 AUD Unit price per 48 Available Now
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 12.70 mm _{+/- 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $0.86 AUD Regular price ~~$1.58 AUD~~ Sale price $0.86 AUD Unit price per Each
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 12.70 mm _{+/- 0.25} (Equiv. 0.5 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 19.05 mm _{+/- 0.25} (Equiv. 0.75 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 2026 Regular price $4.77 AUD Regular price Sale price $4.77 AUD Unit price per Per 5
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Length (L) 19.05 mm _{+/- 0.25} (Equiv. 0.75 in.)
Material: Carbon Steel Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 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 Taper: 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 Sat, Jul 25, 2026 Regular price $2.23 AUD Regular price Sale price $2.23 AUD Unit price per Per 5
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 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 Taper: 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 Sat, Jul 25, 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.
Keys - Machine 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
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 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 Taper: 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
Nominal Key Height (H1) 4.76 mm _{+ 0 / - 0.051} (Equiv. 0.187 in.)	Width (W) 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 Taper: 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
Keys - Machine 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
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Woodruff - 303 Stainless Steel
Part Number: KW-048-062-153-S3 (Each) Woodruff Keys - 4.76x6.2x15.29 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key 8 Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $8.14 AUD Regular price Sale price $8.14 AUD Unit price per Each
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Woodruff - 303 Stainless Steel
Part Number: KW-048-062-153-S3 (Each) Woodruff Keys - 4.76x6.2x15.29 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key 8 Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $8.14 AUD Regular price Sale price $8.14 AUD Unit price per Each View the product page first if you are unsure.
Keys - Woodruff KW-048-062-153-S3 (Each) --- Woodruff Keys - 4.76x6.2x15.29 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key KW-048-062-153-S3 (Each) --- Woodruff Keys - 4.76x6.2x15.29 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key Regular price $8.14 AUD Regular price Sale price $8.14 AUD Unit price per 8 Available Now
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Carbon Steel 1035 Zinc Plated Taper: Zinc Plated Category: Keys - Woodruff - Zinc Plated
Part Number: KW-048-062-153-Z (PK-5) Woodruff Keys - 4.76x6.2x15.29 mm - Carbon Steel 1035 Zinc Plated Key 10 units (50 pcs) Available Now \| Further orders can be expected around Wed, Sep 02, 2026 Regular price $4.77 AUD Regular price Sale price $4.77 AUD Unit price per Per 5
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 6.2 mm _{+/- 0.250} (Equiv. 0.244 in.)	Length (L) 15.29 mm	Head Height (h2) Approx. 15.88 mm
Material: Carbon Steel 1035 Zinc Plated Taper: Zinc Plated Category: Keys - Woodruff - Zinc Plated
Part Number: KW-048-062-153-Z (PK-5) Woodruff Keys - 4.76x6.2x15.29 mm - Carbon Steel 1035 Zinc Plated Key 10 units (50 pcs) Available Now \| Further orders can be expected around Wed, Sep 02, 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.
Keys - Woodruff KW-048-062-153-Z (PK-5) --- Woodruff Keys - 4.76x6.2x15.29 mm - Carbon Steel 1035 Zinc Plated Key KW-048-062-153-Z (PK-5) --- Woodruff Keys - 4.76x6.2x15.29 mm - Carbon Steel 1035 Zinc Plated Key Regular price $4.77 AUD Regular price Sale price $4.77 AUD Unit price per 10 Available Now
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Woodruff - 303 Stainless Steel
Part Number: KW-048-078-185-S3 (Each) Woodruff Keys - 4.76x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key 5 Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $8.77 AUD Regular price Sale price $8.77 AUD Unit price per Each
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Stainless Steel 303 (Similar to A2, 304, 18-8) Category: Keys - Woodruff - 303 Stainless Steel
Part Number: KW-048-078-185-S3 (Each) Woodruff Keys - 4.76x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key 5 Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $8.77 AUD Regular price Sale price $8.77 AUD Unit price per Each View the product page first if you are unsure.
Keys - Woodruff KW-048-078-185-S3 (Each) --- Woodruff Keys - 4.76x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key KW-048-078-185-S3 (Each) --- Woodruff Keys - 4.76x7.8x18.54 mm 303 Stainless Steel - Stainless Steel 303 Similar to A2, 304, 18-8 Key Regular price $8.77 AUD Regular price Sale price $8.77 AUD Unit price per 5 Available Now
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Carbon Steel C45 Hardened Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-048-078-185-CH (PK-2) Woodruff Keys - 4.76x7.8x18.54 mm Plain - Carbon Steel C45 Hardened Key 37 units (74 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per Per 2
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Carbon Steel C45 Hardened Taper: Plain Category: Keys - Woodruff - Plain
Part Number: KW-048-078-185-CH (PK-2) Woodruff Keys - 4.76x7.8x18.54 mm Plain - Carbon Steel C45 Hardened Key 37 units (74 pcs) Available Now \| Further orders can be expected around Sat, Jul 25, 2026 Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per Per 2 View the product page first if you are unsure.
Keys - Woodruff KW-048-078-185-CH (PK-2) --- Woodruff Keys - 4.76x7.8x18.54 mm Plain - Carbon Steel C45 Hardened Key KW-048-078-185-CH (PK-2) --- Woodruff Keys - 4.76x7.8x18.54 mm Plain - Carbon Steel C45 Hardened Key Regular price $3.23 AUD Regular price Sale price $3.23 AUD Unit price per 37 Available Now
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Stainless Steel 316 (Similar to A4, 18-10) Category: Keys - Woodruff - 316 Stainless Steel
Part Number: KW-048-078-185-S6 (PK-5) Woodruff Keys - 4.76x7.8x18.54 mm 316 Stainless Steel - Stainless Steel 316 Similar to A4, 18-10 Key Out of Stock \| Backorder Now \| Orders can be expected around Wed, Aug 05, 2026 Regular price $90.05 AUD Regular price Sale price $90.05 AUD Unit price per Per 5
Nominal Key Height (H1) 4.76 mm _{+/- 0.025} (Equiv. 0.187 in.)	Width (W) 7.8 mm _{+/- 0.250} (Equiv. 0.307 in.)	Length (L) 18.54 mm	Head Height (h2) Approx. 19.05 mm
Material: Stainless Steel 316 (Similar to A4, 18-10) Category: Keys - Woodruff - 316 Stainless Steel
Part Number: KW-048-078-185-S6 (PK-5) Woodruff Keys - 4.76x7.8x18.54 mm 316 Stainless Steel - Stainless Steel 316 Similar to A4, 18-10 Key Out of Stock \| Backorder Now \| Orders can be expected around Wed, Aug 05, 2026 Regular price $90.05 AUD Regular price Sale price $90.05 AUD Unit price per Per 5 View the product page first if you are unsure.
Keys - Woodruff KW-048-078-185-S6 (PK-5) --- Woodruff Keys - 4.76x7.8x18.54 mm 316 Stainless Steel - Stainless Steel 316 Similar to A4, 18-10 Key KW-048-078-185-S6 (PK-5) --- Woodruff Keys - 4.76x7.8x18.54 mm 316 Stainless Steel - Stainless Steel 316 Similar to A4, 18-10 Key Regular price $90.05 AUD Regular price Sale price $90.05 AUD Unit price per Out of stock! Backorder Now

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