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1/2 Machine Keys
Machine Keys, or Straight keys are made from hardened rod with a machined square or rectangular cross section, and are the most common type of key. They are installed into keyways to transmit torque from shafts to gears and other components. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft.
45 results, (click on any line for more information)
| Buy Machine Keys from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| NAPPCO | TX | Machine Key (Square & Rectangular) | Steel | Zinc/Clear | 1/2 x 1/2 x 36 | 1/2 x 1/2 x 36 square key zp rohs | 8 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 90 | 1/2x1/2x90mm square end machine key plain brinell hardness 195-230 | 104 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 1 3/4 | 1/2x1/2x1-3/4 square machine key undersized | 21 |
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| NAPPCO | TX | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 2 1/2 | 1/2x1/2x2-1/2 square keys | 10 |
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| NAPPCO | TX | Machine Key (Square & Rectangular) | Steel | Zinc/Clear | 1/2 x 1/2 x 36 | 1/2x1/2x36 square key zp rohs | 8 |
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| NAPPCO | TX | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 2.0 | 1/2x1/2x2.0l square key plain stem 1018 | 50 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 1 1/2 | key mach rd a 1018 (pl) 1/2x1/2x1 1/2 (W0V0) (W0V0) (W0V0) | 339 |
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| Mansco | MI | Machine Key (Square & Rectangular) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 1/2 x 1 1/4 | 1/2x1/2x1-1/4 square key 18-8 s/s | 3 |
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| Fastener | OH | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 3 3/4 | square key 1/2x1/2x3-3/4 1018 steel | 1 |
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| WINA | MN | Machine Key (Square & Rectangular) | Aluminum | Plain | 1/2 x 1/2 x 2 1/2 | key mach b us 1018 pl 1/2x1/2x2 1/2 | 376 |
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| Wurth Ind | IN | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 2 1/2 | key mach b us 1018 pl 1/2x1/2x2 1/2 steel plain | 376 |
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| Wurth Ind | IN | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 1 1/2 | key mach b us 1018 pl 1/2x1/2x1 1/2 steel plain | 450 |
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| Mansco | MI | Machine Key (Square & Rectangular) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 1/2 x 12 square key 18-8 s.s. 1/box | 16 |
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| WINA | MN | Machine Key (Square & Rectangular) | Aluminum | Plain | 1/2 x 1/2 x 7/8 | key mach b us 1018 pl 1/2x1/2x7/8 | 276 |
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| Wurth Ind | IN | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1/2 x 7/8 | key mach b us 1018 pl 1/2x1/2x7/8 steel plain | 276 |
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| Mansco | MI | Machine Key (Square & Rectangular) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 1/2 x 1 1/2 | 1/2x1/2x1-1/2 square key 18-8 s/s | 2 |
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| WINA | MN | Machine Key (Square & Rectangular) | Aluminum | Plain | 1/2 x 1/2 x 1 1/2 | key mach b us 1018 pl 1/2x1/2x1 1/2 | 450 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 5/8 x 2.285 | key rect under st 1/2x5/8x2.285 (W010) | 92 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 5/8 x 3.09 | 1/2x5/8x3.09 rectangular machine key plain | 10 |
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| Jackson | MS | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 3/4 x 12 | 1/2 x 3/4 x 12 key machine rectangle high carbon steel bilateral astm a29 plain finish | 9 |
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| General F | MI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1.0 | 1/2x1.0 square key | 30 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 | 1/2x1 square machine key undersized plain | 200 |
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| Field Fas | IL | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 1/4 | 1/2x1 1/4 square key oversized 8630 steel rc40-50 heat treat pln | 110 |
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| Liberty | IL | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 1/2 | square key | 18 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 16 3/4 | 1/2x16-3/4 square key w/one radial end +.001-.000 | 67 |
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| Century | FL | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 3/4 | 1/2 x 1 3/4 square key (CRS STEEL) (CRS STEEL) | 15 |
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| Liberty | IL | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 7/8 | square key | 17 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 18 7/8 | 1/2x18-7/8 square key +.001-.000 | 40 |
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| ISSCO | MO | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 2 | gib head key 5/16 taper | 1249 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 20 | 1/2x20 square key step ground .220x.500x.280 x.468 | 75 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 23 1/2 | 1/2x23-1/2 square key +.001-.000 | 12 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 26 | 1/2x26 square key step ground .220x.500x.280x.468 | 63 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 2 5/8 | 1/2x2-5/8 1018 steel square machine key undersized plain | 65 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 3 | 1/2x3 square key w/one radial end +.001-.000 | 21 |
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| ISSCO | MO | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 3 1/2 | gib head key 5/16 taper | 170 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 35 | 1/2x35 square key step ground .220x.500x.280 x.468 | 110 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 36 | 1/2x36 square key step ground .220x.500x.280x.468 | 32 |
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| Wurth | IN | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 5.0 | 1/2 x 5.0 square key rc 40-50 1018 plain per print rev 05 2620180w1 pack 30 per poly bag | 500 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 6 5/8 | 1/2x6-5/8 square machine key undersized plain | 11 |
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| Liberty | IL | Machine Key (Square & Rectangular) | Steel | Zinc/Clear | 1/2 x 12 | square key zinc | 11 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 7/8 | 1/2x1-7/8 square machine key undersized plain | 40 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 5 3/4 | 1/2x5-3/4 square machine key plain undersized | 53 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 2 3/4 | 1/2x2-3/4 square machine key undersized plain | 28 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 2 3/4 | 1/2x2-3/4 square machine key undersized plain | 28 |
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| Century | NY | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 3/4 square key crs steel | 15 |
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