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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.

9 results, (click on any line for more information)

Buy Machine Keys from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
CenturyFLMachine Key (Square & Rectangular)SteelPlain3/4 x 3/4 x 63/4 x 3/4 x 6 square key steel 25
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EndriesWIMachine Key (Square & Rectangular)SteelPlain3/4x4-1/2 1045 square machine key undersized brinell hardness number 195-23064
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EndriesWIMachine Key (Square & Rectangular)SteelPlain3/4 x 4 .0013/4x4 in. square key +.001-.00018
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EndriesWIMachine Key (Square & Rectangular)SteelPlain3/4 x 43/4x4 in. square key 45 degree chamfer end +.001-.0008
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CenturyNYMachine Key (Square & Rectangular)SteelPlain3/4 x 3/4 x 6in square key steel25
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LibertyILMachine Key (Square & Rectangular)SteelZinc/Clear3/4 x 12square key3
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/4 x 3/4 x 12sq key 3/4x3/4x12 cs pln34
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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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HodellOHMachine Key (Square & Rectangular)SteelPlain3/4 x 1/2 x 2 9/16 a1083/4x1/2x2 9/16 machine key astm a108ms-55 grade 10183
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