M3 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 
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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TSFTXMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 6square key 3mm x 3mm x 6mm lg plain150
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CenturyFLMachine Key (Square & Rectangular)SteelPlainM3 x 3din 6885a m3 x 3mm x 12mm300
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CenturyFLMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 8din6885a 3 x 3 x 8 parallel key300
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MTPCAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 20m 3 x 3 x 20 din 6885 a-st parallel key500
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MTPCAMachine Key (Square & Rectangular)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3 x 3 x 10m 3 x 3 x 10 din 6885a4 s.s parallel keys400
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MTPCAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 14m 3 x 3 x 14 din 6885 a-st parallel keystock
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 6shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 10shaft key din 6885 steel plain332
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 12shaft key din 6885 steel plain87
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 36shaft key din 6885 steel plain679
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 4 x 18shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 16shaft key din 6885 steel plain196
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 200shaft key din 6885 steel plain143
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 4 x 22shaft key din 6885 steel plain297
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 20a3x3x20 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 8a3x3x8 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 200b3x3x200 shaft key steel plain din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 18ma3x3x18 shaft key c45 steel din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 25b3x3x25 shaft key steel plain din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 12b3x3x12 shaft key steel plain din 6885inquire
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MMCCILMachine Key (Square & Rectangular)300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3 x 3 x 6a3x3x6 shaft key a2 din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM3 x 5 x 200mb3x5x200 shaft key steel plain din 6885inquire
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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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LibertyILMachine Key (Square & Rectangular)SteelPlainM3 x 103x10 long square machine key rounded edges20
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HewesNYMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 10M3x3 x 10 parallel key bn 87042
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AFIFLMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 8m3x3x8 parallel key rd end st200
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AFIFLMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 8m3x3x8 parallel key rd end st din6885a200
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MtrcSpecCAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 10M3x 3x10 parallel key din 6885stock
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MtrcSpecCAMachine Key (Square & Rectangular)SteelPlainM3 x 3parallel key 12 long din 6885stock
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EurolinkSCMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 103 x 3 x 10 din 6885 a plain finish parallel key with round endsinquire
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EurolinkSCMachine Key (Square & Rectangular)316, 317, A4 StainlessPlainM3 x 3 x 163 x 3 x 16 din 6885 a a4 stainless steel parallel key with round endsinquire
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 163 x 3 x 16 din 6885a parl key stl pl45
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 183 x 3 x 18 din 6885a parl key stl pl50
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 253 x 3 x 25 din 6885a parl key stl pl66
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 633 x 3 x 63 din 6885a parl key stl pl88
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 253 x 3 x 25 din 6885b parrl key sq end s100
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 103 x 3 x 10 din 6885a parl key stl pl243
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 203 x 3 x 20 din 6885a parl key stl pl113
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 123 x 3 x 12 din 6885b parrl key sq end s50
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 143 x 3 x 14 din 6885a parl key stl pl115
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 323 x 3 x 32 din 6885b parrl key sq end s200
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 123 x 3 x 12 din 6885a parl key stl pl237
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MSTCMAMachine Key (Square & Rectangular)SteelPlainM3 x 3 x 63 x 3 x 6 din 6885a parl key stl pl157
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