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3/16 inch length 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 
Field FasILMachine Key (Square & Rectangular)SteelPlain1/4 x 3/16 x 1 3/81/4 x 3/16 x 1 3/8 rectangular key undersized alloy stl rc 40-50 heat treat pln120
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HayesCAMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 3/4ms20066-183 3/16 x 3/16 x 3/4 gr c keystock steel300
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NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear3/16 x 3/16 x 363/16 x 3/16 x 36 square key zp rohs 5
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Wurth IndINMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 3key mach b us 1018 pl 3/16x3/16x3 steel plain5192
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Wurth IndINMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 3key mach b os 1018 pl 3/16x3/16x3 steel plain500
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Wurth IndINMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 7/8key mach b us 1018 pl 3/16x3/16x7/8 steel plain1290
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 12sq key 3/16x3/16x12 cs pln55
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 13/16x3/16x1 cut key594
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1 3/83/16x3/16x1 3/8 cut key762
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1 1/23/16x3/16x1 1/2 cut key +.001/-.000934
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 3/43/16x3/16x3/4 cut key +.001/-.000311
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1 1/43/16x3/16x1 1/4 cut key +.001/-.000254
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WINAMNMachine Key (Square & Rectangular)AluminumPlain3/16 x 3/16 x 3key mach b os 1018 pl 3/16x3/16x3500
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WINAMNMachine Key (Square & Rectangular)AluminumPlain3/16 x 3/16 x 7/8key mach b us 1018 pl 3/16x3/16x7/81290
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WINAMNMachine Key (Square & Rectangular)AluminumPlain3/16 x 3/16 x 3key mach b us 1018 pl 3/16x3/16x35192
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 13/163/16x3/16x13/16 square key pln718
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1 29/323/16x3/16x1-29/32 square key pln391
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1-5/16 square key pln250
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ManscoMIMachine Key (Square & Rectangular)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/16 x 3/16 x 1 1/43/16x3/16x1-1/4 square key 18-8 s/s100
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 29/323/16 x 3/16 x 29/32 square key pln15
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1 1/83/16x3/16x1-1/8 square key pln204
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 2 5/83/16 x 3/16 x 2-5/8 square key pln11
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ManscoMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 11/163/16x3/16x11/16 square key pln485
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MidStatesMIMachine Key (Square & Rectangular)SteelPlain1/4 x 3/16sq machinery key 1-1/4in4
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MidStatesMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16sq machinery key 2-1/22
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MidStatesMIMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x .8753/16 x 3/16 x .875 machine key200
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LibertyILMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 1machine key oversized square ends100
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WDMBIAMachine Key (Square & Rectangular)SteelPlain3/16 x 3/16 x 3/4key mach us sq b hard 3/16x3/16x3/4 (W050)303
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WDMBIAMachine Key (Square & Rectangular)SteelPlain1/8 x 3/16 x .450key rect steel (pl) 1/8x3/16x.450 (W000) (W000)7,719
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ISSCOMOMachine Key (Square & Rectangular)Grade 2Plain3/16 x 3/16 x 2 1/8square-.001/.0002000
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NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear3/16 x 3/16 x 363/16x3/16x36 square key zp rohs5
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IRFNJMachine Key (Square & Rectangular)BrassPlain3/16 x 3/16 x 1 1/2long square key1039
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IRFNJMachine Key (Square & Rectangular)BrassPlain3/16 x 3/16 x 1 1/2long square key1039
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