Machine Keys, Steel

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 
TSFTXMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 6square key 3mm x 3mm x 6mm lg plain150
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MAINSOURCNHMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 20m4 x 4 x 20 din 6885a parallel key st150
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MAINSOURCNHMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 32m5 x 5 x 32 din 6885a shaft key st46
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YANKEENHMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 20m4 x 4 x 20 parallel key w/round end-plain88
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 2810x8 x 28 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 2010x8 x 20 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM14 x 9 x 6314x9 x 63 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 325x5 x 32 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM8 x 7 x 208x7 x 20 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM22 x 14 x 100M22x14x100 plain finish taper key with gib head din 6887inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 2510x8 x 25 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM22 x 14 x 10022x14x100 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM28 x 16 x 160M28x16x160 plain finish taper key with gib head din 6887inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM6 x 6 x 326x6 x 32 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM6 x 6 x 306x6 x 30 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM14 x 9 x 7014x9 x 70 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM18 x 11 x 6018x11x60 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM8 x 5 x 208x5 x 20 a plain finish parallel key with round ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 255x5 x 25 b plain finish parallel key with square ends din 6885inquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM12 x 8 x 4512x8 x 45 a plain finish parallel key with round ends din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM12 x 8 x 90shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 30shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM18 x 11 x 90shaft key steel plain a18x11x90 din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM12 x 8 x 75shaft key din 6885 steel plaininquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 255 x 5 x 25 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM25 x 16 x 16025 x 16 x 160 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 5010 x 8 x 50 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM70 x 36 x 40070 x 36 x 400 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 124 x 4 x 12 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM36 x 20 x 16036 x 20 x 160 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM8 x 7 x 288 x 7 x 28 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 3010 x 8 x 30 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM12 x 8 x 10012 x 8 x 100 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM6 x 6 x 226 x 6 x 22 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 2010 x 8 x 20 din 6885 a plain finish parallel key with square endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM8 x 7 x 358 x 7 x 35 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM10 x 8 x 5610 x 8 x 56 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM6 x 6 x 406 x 6 x 40 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM20 x 12 x 7020 x 12 x 70 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 165 x 5 x 16 din 6885 a plain finish parallel key with round endsinquire
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RCFastAZMachine Key (Square & Rectangular)SteelPlainMS20066-760
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LibertyILMachine Key (Square & Rectangular)SteelPlain6mx3mm long square machine key round edges din 885 undersize din 885 undersize200
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/4 x 1 1/21/4 x 1 1/2 square key180
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CenturyFLMachine Key (Square & Rectangular)SteelPlain351298 key square 3/16 x 3/16 rnd ends140
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CenturyFLMachine Key (Square & Rectangular)SteelPlain.37.376/.375 x 1.51/1.45 sq key rd ends23
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CenturyFLMachine Key (Square & Rectangular)SteelPlainbossard bn870-5x5/18100
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/8 x 3/41/8 x 3/4 square key171
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/8 x 121/8 x 12 square key15
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CenturyFLMachine Key (Square & Rectangular)SteelPlain3/16 x 13/16 x 1 square key steel895
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CenturyFLMachine Key (Square & Rectangular)SteelPlain3/16 x 7/83/16 x 7/8 square key10
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CenturyFLMachine Key (Square & Rectangular)SteelPlain3/16 x 1 0.003/16 x 1 square key +0.00-.0026
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CenturyFLMachine Key (Square & Rectangular)SteelPlain3/16 x 1 3/83/16 x 1 3/8 square key100
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/4 x 1 3/41/4 x 1 3/4 square key20
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CenturyFLMachine Key (Square & Rectangular)SteelPlain1/2 x 1 3/41/2 x 1 3/4 square key65
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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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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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CenturyFLMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 8fitting key 4x4x8 din68851000
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CenturyFLMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 20din 6885a m4 x 4 x 20mm stl116
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EndriesWIMachine Key (Square & Rectangular)SteelPlain3/8 x 1 3/83/8x1-3/8 square key radial ends per print 135288 revision b559
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CenturyFLMachine Key (Square & Rectangular)SteelPlainms20066-76250
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CenturyFLMachine Key (Square & Rectangular)SteelPlainM3 x 3din 6885a m3 x 3mm x 12mm300
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Purchase MOMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 14m5 x 5 x 14 machine key w/ rounded ends stl plain100
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Purchase MOMachine Key (Square & Rectangular)SteelPlain3/16 x 13/16 x 1 square key211
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FTSOHMachine Key (Square & Rectangular)SteelPlainM10x8/x100 parallel key stl din 6885a30
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FTSOHMachine Key (Square & Rectangular)SteelPlainM10x8/x32 parallel key prnt stl din 6885a392
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FTSOHMachine Key (Square & Rectangular)SteelPlainM10x8/x56 parallel key stl din 6885a28
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FTSOHMachine Key (Square & Rectangular)SteelPlainM14x9/x 38 parallel key sq end stl75
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FTSOHMachine Key (Square & Rectangular)SteelPlainM2x2/x14 parallel key stl din 6885a100
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FTSOHMachine Key (Square & Rectangular)SteelPlainM2x2/x20 parallel key stl din 6885a238
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FTSOHMachine Key (Square & Rectangular)SteelPlainM2x2/x6 parallel key stl din 6885a229
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FTSOHMachine Key (Square & Rectangular)SteelPlainM2x2/x8 parallel key stl din 6885a202
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FTSOHMachine Key (Square & Rectangular)SteelPlainM3x3/x14 parallel key stl din 6885a255
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FTSOHMachine Key (Square & Rectangular)SteelPlainM3x3/x20 parallel key stl din 6885a161
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FTSOHMachine Key (Square & Rectangular)SteelPlainM3x3/x 7 parallel key sq end print stl140
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JacksonMSMachine Key (Square & Rectangular)SteelPlain3/16 x 1 1/4key machine square43
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JacksonMSMachine Key (Square & Rectangular)SteelPlain5/16 x 3/8 x 12key machine rectangle26
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JacksonMSMachine Key (Square & Rectangular)SteelPlain5/16 x 1/2 x 12key machine rectangle3
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JacksonMSMachine Key (Square & Rectangular)SteelPlain3/8 x 5/8 x 12key machine rectangle6
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AbabaCAMachine Key (Square & Rectangular)SteelZinc/ClearM77mm square tool key zinc alloy nickle pltd10
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JacksonMSMachine Key (Square & Rectangular)SteelPlain1/2 x 3/4 x 121/2 x 3/4 x 12 key machine rectangle high carbon steel bilateral astm a29 plain finish9
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WurthOntMachine Key (Square & Rectangular)SteelPlainM45 x 8 x 7feathkey din6885 c45c a 8x7x22387
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WurthOntMachine Key (Square & Rectangular)SteelPlainM45 x 8 x 7feathkey din6885 c45c a 8x7x45700
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WurthOntMachine Key (Square & Rectangular)SteelPlainM45 x 14 x 9feathkey din6885 c45c a 14x9x75195
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WurthOntMachine Key (Square & Rectangular)SteelPlainM45 x 10 x 8feathkey din6885 c45c a 10x8x60150
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WurthOntMachine Key (Square & Rectangular)SteelPlainM45 x 20 x 12feathkey din6885 c45c b 20x12x12520
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WurthOntMachine Key (Square & Rectangular)SteelPlain7/16 x 5/8 x 3key rect over st 1045 (pl) 7/16x5/8x39
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Wurth AdaMNMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 45feathkey din6885 c45k a 5x5x451,500
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Wurth AdaMNMachine Key (Square & Rectangular)SteelPlainM4 x 4 x 14feathkey din6885 c45k a 4x4x141,500
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CenturyFLMachine Key (Square & Rectangular)SteelPlainM8 x 7din 6885a m8 x 7mm x 36mm100
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Irwin IndOntMachine Key (Square & Rectangular)SteelPlain5 x 5 x 205 x 5 x 20mm steel shaft key382
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Irwin IndOntMachine Key (Square & Rectangular)SteelPlain1/4 x 1/4 x 1 1018 10451/4x1/4x1 machine key 1018-1045 steel51
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Irwin IndOntMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 103mm x 3mm x 10mm parallel key c45k steel plain190
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Irwin IndOntMachine Key (Square & Rectangular)SteelPlainM5 x 5 x 20m5 x 5 x 20 din 6885b parallel key90
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HewesNYMachine Key (Square & Rectangular)SteelPlain3/32 x 5/8sqr keysundersize stl150
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/8 x 1/2sqr key208
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/8 x 5/8sqr keysundersize stl545
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/8 x 1 1/4sqr key100
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/8 x 1sqr key402
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HewesNYMachine Key (Square & Rectangular)SteelPlain3/16 x 2sqr keys90
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HewesNYMachine Key (Square & Rectangular)SteelPlain3/16 x 1 1/8sqr keysundersize stl140
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 3/4sqr keysundersize stl120
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 1/4 x 2 7/8sqr keyprint# 843-4-46length tolerance +/-.010175
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 1 1/2sqr key194
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 2 1/8sqr keysundersize stl110
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 1/4 x 1 3/4sqr keyprint #843-4-28159
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 1 3/16sqr keysundersize stl110
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 1 1/4sqr key250
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 3 3/8sqr keysundersize120
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HewesNYMachine Key (Square & Rectangular)SteelPlain1/4 x 1 1/4sqr keysundersize stl200
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