Material Material |
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Finish Finish |
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Tolerance Rating Tolerance Rating |
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Container Type Container Type |
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Container Features Container Features |
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Rounded Keys Included Rounded Keys Included |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Undersized Machine Key Assortments

These keys are slightly undersized to fit in standard keyways. Made from zinc-plated steel, they resist corrosion in wet environments.

Number of Pieces | Straight Keys Included | Size Tolerance | Container Type | Each | |
Zinc-Plated 1018-1045 Carbon Steel | |||||
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58 | 1/8" × 1/8" × 3/4" Lg. (3 Pieces) 1/8" × 1/8" × 1" Lg. (3 Pieces) 3/16" × 3/16" × 3/4" Lg. (5 Pieces) 3/16" × 3/16" × 1" Lg. (5 Pieces) 3/16" × 3/16" × 1 1/4" Lg. (5 Pieces) 1/4" × 1/4" × 3/4" Lg. (5 Pieces) 1/4" × 1/4" × 1 1/4" Lg. (5 Pieces) 1/4" × 1/4" × 1 1/2" Lg. (5 Pieces) 5/16" × 5/16" × 1 1/4" Lg. (5 Pieces) 5/16" × 5/16" × 1 1/2" Lg. (5 Pieces) 3/8" × 3/8" × 1 1/4" Lg. (5 Pieces) 3/8" × 3/8" × 1 1/2" Lg. (5 Pieces) 1/2" × 1/2" × 1 1/2" Lg. (2 Pieces) | -0.003" to 0" | Plastic Box | 000000000 | 0000000 |
Zinc-Plated Steel | |||||
300 | 1/8" × 1/8" × 3/4" Lg. (25 Pieces) 1/8" × 1/8" × 1" Lg. (25 Pieces) 3/16" × 3/16" × 3/4" Lg. (25 Pieces) 3/16" × 3/16" × 1" Lg. (25 Pieces) 3/16" × 3/16" × 1-1/4" Lg. (25 Pieces) 3/16" × 3/16" × 1-1/2" Lg. (25 Pieces) 1/4" × 1/4" × 3/4" Lg. (25 Pieces) 1/4" × 1/4" × 1-1/4" Lg. (25 Pieces) 1/4" × 1/4" × 1" Lg. (25 Pieces) 1/4" × 1/4" × 1-1/2" Lg. (25 Pieces) 5/16" × 5/16" × 1-1/4" Lg. (25 Pieces) 5/16" × 5/16" × 1-1/2" Lg. (25 Pieces) | -0.002" to 0" | Plastic Box | 000000000 | 000000 |

Number of Pieces | Rounded Keys Included | Size Tolerance, mm | Container Type | Each | |
Zinc-Plated Steel | |||||
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25 | 4 mm × 4 mm × 80 mm Lg. (2 Pieces) 5 mm × 5 mm × 80 mm Lg. (3 Pieces) 6 mm × 6 mm × 80 mm Lg. (2 Pieces) 7 mm × 7 mm × 80 mm Lg. (2 Pieces) 8 mm × 7 mm × 80 mm Lg. (2 Pieces) 8 mm × 8 mm × 80 mm Lg. (3 Pieces) 10 mm × 8 mm × 80 mm Lg. (2 Pieces) 10 mm × 10 mm × 80 mm Lg. (2 Pieces) 12 mm × 8 mm × 80 mm Lg. (2 Pieces) 12 mm × 12 mm × 80 mm Lg. (2 Pieces) 16 mm × 10 mm × 80 mm Lg. (1 Piece) 18 mm × 11 mm × 80 mm Lg. (1 Piece) 20 mm × 12 mm × 80 mm Lg. (1 Piece) | -0.03 to 0 | Plastic Box | 000000000 | 0000000 |
58 | 4 mm × 4 mm × 40 mm Lg. (8 Pieces) 5 mm × 5 mm × 40 mm Lg. (8 Pieces) 6 mm × 6 mm × 40 mm Lg. (10 Pieces) 8 mm × 7 mm × 40 mm Lg. (4 Pieces) 8 mm × 8 mm × 40 mm Lg. (10 Pieces) 10 mm × 8 mm × 40 mm Lg. (4 Pieces) 10 mm × 10 mm × 40 mm Lg. (4 Pieces) 12 mm × 12 mm × 40 mm Lg. (4 Pieces) 14 mm × 9 mm × 40 mm Lg. (4 Pieces) 16 mm × 10 mm × 40 mm Lg. (2 Pieces) | -0.03 to 0 | Plastic Box | 000000000 | 000000 |
Standard Key Stock Assortments


These assortments include various sizes of key stock—choose a piece and cut it to your desired length. A gold dichromate finish makes it easy to read the sizing on each piece.
Number of Pieces | Straight Keys Included | Size Tolerance, mm | Container Type | Each | |
Gold-Dichromate Plated Steel | |||||
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32 | 4 mm × 4 mm × 12" Lg. (6 Pieces) 5 mm × 5 mm × 12" Lg. (6 Pieces) 6 mm × 6 mm × 12" Lg. (6 Pieces) 8 mm × 8 mm × 12" Lg. (6 Pieces) 10 mm × 10 mm × 12" Lg. (4 Pieces) 12 mm × 12 mm × 12" Lg. (4 Pieces) | -0.03 to 0.03 | Cardboard Box | 00000000 | 0000000 |
Oversized Key Stock Assortments


Make a key that is the exact length you need. Slightly larger than the size listed, these oversized keys offer a tight fit in worn keyways.
Zinc-plated steel key stock resists corrosion in wet environments.
18-8 stainless steel key stock is chemical resistant and may be mildly magnetic.
Number of Pieces | Straight Keys Included | Size Tolerance | Container Type | Each | |
Zinc-Plated 1018-1045 Carbon Steel | |||||
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7 | 1/8" × 1/8" × 12" Lg. (1 Piece) 3/16" × 3/16" × 12" Lg. (1 Piece) 3/16" × 1/4" × 12" Lg. (1 Piece) 1/4" × 5/16" × 12" Lg. (1 Piece) 5/16" × 3/8" × 12" Lg. (1 Piece) 3/8" × 7/16" × 12" Lg. (1 Piece) 7/16" × 1/2" × 12" Lg. (1 Piece) | 0" to 0.003" | Cardboard Box | 000000000 | 000000 |
31 | 1/8" × 1/8" × 12" Lg. (5 Pieces) 3/16" × 3/16" × 12" Lg. (5 Pieces) 1/4" × 1/4" × 12" Lg. (5 Pieces) 5/16" × 5/16" × 12" Lg. (5 Pieces) 3/8" × 3/8" × 12" Lg. (5 Pieces) 7/16" × 7/16" × 12" Lg. (3 Pieces) 1/2" × 1/2" × 12" Lg. (3 Pieces) | 0" to 0.003" | Cardboard Box | 000000000 | 00000 |
18-8 Stainless Steel | |||||
7 | 1/8" × 1/8" × 12" Lg. (1 Piece) 3/16" × 3/16" × 12" Lg. (1 Piece) 1/4" × 1/4" × 12" Lg. (1 Piece) 5/16" × 5/16" × 12" Lg. (1 Piece) 3/8" × 3/8" × 12" Lg. (1 Piece) 7/16" × 7/16" × 12" Lg. (1 Piece) 1/2" × 1/2" × 12" Lg. (1 Piece) | 0" to 0.003" | Cardboard Tube | 000000000 | 00000 |
31 | 1/8" × 1/8" × 12" Lg. (5 Pieces) 3/16" × 3/16" × 12" Lg. (5 Pieces) 1/4" × 1/4" × 12" Lg. (5 Pieces) 5/16" × 5/16" × 12" Lg. (5 Pieces) 3/8" × 3/8" × 12" Lg. (5 Pieces) 7/16" × 7/16" × 12" Lg. (3 Pieces) 1/2" × 1/2" × 12" Lg. (3 Pieces) | 0" to 0.003" | Cardboard Box | 000000000 | 000000 |
Oversized Machine Key Assortments


Slightly larger than the size listed, these oversized keys offer a tight fit in worn keyways.
Number of Pieces | Straight Keys Included | Size Tolerance, mm | Container Type | Specifications Met | Each | |
1018-1045 Carbon Steel | ||||||
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25 | 4 mm × 4 mm × 3 3/8" Lg. (2 Pieces) 5 mm × 5 mm × 3 3/8" Lg. (2 Pieces) 6 mm × 6 mm × 3 3/8" Lg. (3 Pieces) 7 mm × 7 mm × 3 3/8" Lg. (2 Pieces) 7 mm × 8 mm × 3 3/8" Lg. (2 Pieces) 8 mm × 8 mm × 3 3/8" Lg. (3 Pieces) 8 mm × 10 mm × 3 3/8" Lg. (2 Pieces) 8 mm × 12 mm × 3 3/8" Lg. (2 Pieces) 10 mm × 10 mm × 3 3/8" Lg. (2 Pieces) 10 mm × 16 mm × 3 3/8" Lg. (1 Piece) 11 mm × 18 mm × 3 3/8" Lg. (1 Piece) 12 mm × 12 mm × 3 3/8" Lg. (2 Pieces) 12 mm × 20 mm × 3 3/8" Lg. (1 Piece) | 0 to 0.076 | Plastic Box | DIN 6885 | 000000000 | 000000 |
Woodruff Key Assortments


A rounded bottom allows these keys to rock in their seat to relieve stress on the shaft caused by vibration or misalignment.
Zinc-plated steel keys have good corrosion resistance.
316 stainless steel keys have excellent chemical and corrosion resistance. However, they’re not as strong as steel and zinc-plated steel keys.
Number of Pieces | Woodruff Keys Included | Material | Container Type | Each | |
Zinc-Plated 1035 Carbon Steel | |||||
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250 | Key Number 5 (30 each) Key Numbers A, 10, 11, 12, 61, 91 (5 Each) Key Numbers 2, 3, 7, 9, 212 (20 Each) Key Numbers 1, 4, 8, 211, 213 (10 Each) Key Number 6 (40 Each) | Zinc-Plated 1035 Carbon Steel | Plastic Box | 000000000 | 000000 |
1035 Carbon Steel | |||||
30 | Key Number 3 (10 each) Key Numbers A, 9, and 15 (4 Each) Key Number 6 (8 Each) | 1035 Carbon Steel | Plastic Box | 000000000 | 00000 |
350 | Key Size 8 mm × 11 mm (15 Each) Key Size 2.5 mm × 3.7 mm (25 Each) Key Size 5 mm × 10 mm (15 Each) Key Size 2 mm × 5 mm (25 Each) Key Size 6 mm × 9 mm (15 Each) Key Size 4 mm × 5 mm (25 Each) Key Size 2 mm × 2.6 mm (25 Each) Key Size 6 mm × 7.5 mm (15 Each) Key Size 5 mm × 7.5 mm (20 Each) Key Size 4 mm × 7.5 mm (25 Each) Key Size 3 mm × 6.5 mm (25 Each) Key Size 8 mm × 13 mm (15 Each) Key Size 5 mm × 9 mm (20 Each) Key Size 10 mm × 13 mm (10 Each) Key Size 1.5 mm × 2.6 mm (25 Each) Key Size 6 mm × 11 mm (15 Each) Key Size 10 mm × 16 mm (10 Each) Key Size 3 mm × 3.7 mm (25 Each) | 1035 Carbon Steel | Plastic Box | 000000000 | 000000 |
1018-1045 Carbon Steel | |||||
97 | Key Numbers 18 and G (5 Each) Key Numbers 1, 2, 4, 5, 16, 19, 12, 14, 17, 20, 21, 22, 24, D, 23, E, 26, 27, 28, and 29 (1 Each) Key Numbers 3, 7, 6, 8, and 91 (4 Each) Key Number 9 (12 Each) Key Numbers 10, 13, 15, B, and 152 (3 Each) Key Numbers 11 and A (10 Each) | 1018-1045 Carbon Steel | Plastic Box | 000000000 | 00000 |
225 | Key Numbers 11, 13, and A (10 Each) Key Numbers 15, 18, and E (5 Each) Key Numbers 211, 212, 213, 1, 2, 3, 5, 7, 6, 61, 9, and 91 (15 Each) | 1018-1045 Carbon Steel | Plastic Box | 000000000 | 000000 |
316 Stainless Steel | |||||
66 | Key Numbers 5, 6, 7, 8, 9, 61, 91 (4 Each) Key Numbers 1, 2, 3, 211, 212, 213 (5 Each) Key Numbers 11, A (3 Each) Key Number 15 (2 Each) | 316 Stainless Steel | Plastic Box | 000000000 | 000000 |
Step Key Assortments





Also known as offset key stock, use step keys to repair keyways in gears and shafts. Made from zinc-plated steel, they resist corrosion in wet environments.
Number of Pieces | Step Keys for Gears Included | Step Keys for Shafts Included | Tolerance Rating | Container Type | Each | |
Zinc-Plated 1018-1045 Carbon Steel | ||||||
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7 | 3/16" (A) × 3/32" (B) × 1/8" (C) × 1/16" (D) × 5/32" Ht. × 12" Lg. (1 Piece) 3/8" (A) × 3/16" (B) × 5/16" (C) × 5/32" (D) × 11/32" Ht. × 12" Lg. (1 Piece) | 3/16" (A) × 3/32" (B) 1/4" (C) × 1/8" (D) × 7/32" Ht. × 12" Lg. (1 Piece) 1/4" (A) × 1/8" (B) 5/16" (C) × 1/8" (D) × 1/4" Ht. × 12" Lg. (1 Piece) 1/4" (A) × 1/8" (B) 3/8" (C) × 3/16" (D) × 5/16" Ht. × 12" Lg. (1 Piece) 3/8" (A) × 3/16" (B) 1/2" (C) × 1/4" (D) × 7/16 Ht. × 12" Lg. (1 Piece) 1/2" (A) × 1/4" (B) 5/8" (C) × 5/16" (D) × 9/16" Ht. × 12" Lg. (1 Piece) | Oversized | Cardboard Box | 000000000 | 000000 |
Machine Key and Woodruff Key Assortments
![]() | ![]() Straight Key |
![]() Woodruff Key |
Number of Pieces | Straight Keys Included | Woodruff Keys Included | Container Type | Each | |
1018-1045 Carbon Steel | |||||
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401 | 1/8" × 1/8" × 1 1/2" Lg. (50 Pieces) 3/16" × 1/4" × 1 1/2" Lg. (25 Pieces) 3/16" × 3/16" × 1 1/2" Lg. (30 Pieces) 1/4" × 1/4" × 1 1/2" Lg. (18 Pieces) 5/16" × 5/16" × 1 1/2" Lg. (15 Pieces) 3/8" × 3/8" × 1 1/2" Lg. (15 Pieces) | Key Numbers 3 and 5 (45 Each) Key Numbers 6 and 7 (22 Each) Key Number 9 (30 Each) Key Numbers 10 and A (15 Each) Key Number 13 (12 Each) Key Number 15 (20 Each) Key Numbers C and 21 (9 Each) Key Number G (4 Each) | Plastic Box | 000000000 | 0000000 |