3mm 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 
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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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)SteelPlainM5 x 3 x 14a5x3x14 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 25a5x3x25 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 63a5x3x63 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 36a5x3x36 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 56a5x3x56 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 40a5x3x40 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 50a5x3x50 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 45a5x3x45 shaft key din 6885 steel plaininquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM4 x 3 x 7a4x3x7 shaft key steel plain din 6885inquire
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MMCCILMachine Key (Square & Rectangular)SteelPlainM5 x 3 x 180mb5x3x180 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 25ma3x3x25 shaft key steel plain din 6885inquire
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MMCCILMachine Key (Square & Rectangular)316, 317, A4 StainlessPlainM3 x 3 x 7.5ma3x3x7.5 shaft key a4 plain din 6885inquire
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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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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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ACFCAMachine Key (Square & Rectangular)SteelPlainM12 x 312mmx3mmx3mm metric parallel key steel4428
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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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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)SteelPlainM5 x 3 x 165 x 3 x 16 din 6885a parl key stl pl100
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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)SteelPlainM5 x 3 x 125 x 3 x 12 din 6885a parl key stl pl149
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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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