5/8 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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Buy Machine Keys from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear5/8 x 5/8 x 365/8 x 5/8x 36 square key zp rohs2
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SWACOOHMachine Key (Square & Rectangular)SteelPlain5/8 x 5/8 x 12sq key 5/8x5/8x12 cs pln50
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WDMBIAMachine Key (Square & Rectangular)SteelPlain5/8 x 5/8 x 1 1/2machine key us sq b haround 5/8x5/8x1 1/2121
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ManscoMIMachine Key (Square & Rectangular)SteelPlain5/8 x 5/8 x 12square key 1/box6
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NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear5/8 x 5/8 x 365/8x5/8x 36 square key zp rohs2
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CenturyFLMachine Key (Square & Rectangular)SteelPlain5/8 x 5/8 x 2 1/25/8 x 5/8 x 2 1/2 square key steel50
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MidStatesMIMachine Key (Square & Rectangular)SteelPlain5/8 x 5/8machinery key-both ends rnd 2-1
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FACCAOntMachine Key (Square & Rectangular)SteelPlain5/8 x 5/8 x 8 1/2standard gib head machine key 5/8 x 5/8 x 8 1/2 c-1018 steel plain192
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WurthINMachine Key (Square & Rectangular)SteelPlain5/8 x 3 1/25/8 x 3-1/2 square key class 2 c1018 w/ chamfered ends per print 8212 rev 06505
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