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3/8 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.

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

Buy Machine Keys from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
JacksonMSMachine Key (Square & Rectangular)SteelPlain5/16 x 3/8 x 12key machine rectangle26
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JacksonMSMachine Key (Square & Rectangular)SteelZinc/Clear1/4 x 3/8 x 12rectangle key14
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Irwin IndOntMachine Key (Square & Rectangular)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8 x 3/8 x 1.0003/8 x 3/8 x 1.000 machine key undersize stainless steel16
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/8 x 3/81/8 x 3/8 square key (STEEL) (STEEL) 215
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NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear3/8 x 3/8 x 363/8 x 3/8 x 36 square key zp rohs (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS) (60-KEYS and KEY TOOLS)8
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ManscoMIMachine Key (Square & Rectangular)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8 x 3/8 x 1 1/4square key 18-8 s/s124
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CenturyNYMachine Key (Square & Rectangular)SteelPlain1/8 x 3/8 square key steel215
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Field FasILMachine Key (Square & Rectangular)SteelPlain5/16 x 3/8 x 2 1/4 rectangular key undersize stl pln188
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SWACOOHMachine Key (Square & Rectangular)SteelPlain3/8 x 3/8 x 23/8x3/8x2 cut key18
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WDMBIAMachine Key (Square & Rectangular)SteelPlain3/8 x 3/8 x 2key mach us sq b 3/8x3/8x2 (W040)651
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ISSCOMOMachine Key (Square & Rectangular)Grade 2Plain3/8 x 3/8 x 1square +.001/.0001040
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ISSCOMOMachine Key (Square & Rectangular)Grade 2Plain3/8 x 3/8 x 2 1/2square +.001/.000375
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ISSCOMOMachine Key (Square & Rectangular)Grade 2Plain3/8 x 3/8 x 1 1/2square +.001/.0004630
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NAPPCOTXMachine Key (Square & Rectangular)SteelZinc/Clear3/8 x 3/8 x 363/8x3/8x36 square key zp rohs10
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