3/4 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 
SWACOOHMachine Key (Square & Rectangular)SteelPlain3/4 x 3/4 x 12sq key 3/4 x 3/4 x 12 cs pln85
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CenturyFLMachine Key (Square & Rectangular)SteelPlain3/4 x 3/4 x 63/4 x 3/4 x 6 square key steel25
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WDMBIAMachine Key (Square & Rectangular)SteelPlain3/4 x 3/4 x 4 1/2key mach us sq b hard 3/4x3/4x4 1/238
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WDMBIAMachine Key (Square & Rectangular)SteelPlain3/4 x 1 x 4 1/2key mach sq a st 3/4x1x4 1/2 drw112
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MidStatesMIMachine Key (Square & Rectangular)SteelPlain3/4 x 3/43/4 x 3/4 machinery key-both ends rnd 5-1
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LibertyILMachine Key (Square & Rectangular)SteelZinc/Clear3/4 x 12square key3
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