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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSMachine Key (Square & Rectangular)SteelPlain1/2 x 3/4 x 121/2 x 3/4 x 12 key machine rectangle high carbon steel bilateral astm a29 plain finish9
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SWACOOHMachine Key (Square & Rectangular)SteelPlain1/2 x 1/2 x 12sq key 1/2 x 1/2 x 12 cs pln205
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/2 x 1 3/41/2 x 1 3/4 square key65
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NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear1/2 x 1/2 x 361/2 x 1/2 x 36 square key zp rohs32
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General FMIMachine Key (Square & Rectangular)SteelPlain1/2 x 1.01/2 x 1.0 square key60
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WDMBIAMachine Key (Square & Rectangular)SteelPlain1/2 x 1/2 x 3key mach us sq b 1/2x1/2x326
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WDMBIAMachine Key (Square & Rectangular)SteelPlain1/2 x 1/2 x 4key mach us sq b 1/2x1/2x428
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WDMBIAMachine Key (Square & Rectangular)SteelPlain1/2 x 1/2 x 1 15/16key mach us sq b hard 1/2x1/2x1 15/16143
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ManscoMIMachine Key (Square & Rectangular)SteelZinc/Clear1/2 x 1/2 x 12square key triv 1/box10
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ManscoMIMachine Key (Square & Rectangular)SteelPlain1/2 x 1/2 x 12square key 1/box2
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LibertyILMachine Key (Square & Rectangular)SteelPlain1/2 x 1 7/8square key17
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LibertyILMachine Key (Square & Rectangular)SteelZinc/Clear1/2 x 12square key zinc11
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LibertyILMachine Key (Square & Rectangular)SteelPlain1/2 x 1 1/2square key18
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ISSCOMOMachine Key (Square & Rectangular)SteelPlain1/2 x 2gib head key 5/16 taper1249
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ISSCOMOMachine Key (Square & Rectangular)SteelPlain1/2 x 3 1/2gib head key 5/16 taper170
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WurthINMachine Key (Square & Rectangular)SteelPlain1/2 x 5.01/2 x 5.0 square key rc 40-50 1018 plain per print rev 05 2620180w1 pack 30 per poly bag500
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