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Machine Keys
Machine Keys, or Parallel 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.
1,769 Machine Key (Square & Rectangular), showing 200, (click on any line for more information)
| Buy Machine Keys from one of our FCH Network Members | ||||||||
|---|---|---|---|---|---|---|---|---|
| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| R&S Indus | OR | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M6 x 6 x 35 | 6mm x 6mm x 35mm a4 stainless steel machinery key-rounded end | 498 |
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| Jackson | MS | Machine Key (Square & Rectangular) | Steel | Plain | 3/16 x 1 1/4 | key machine square | 43 |
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| Jackson | MS | Machine Key (Square & Rectangular) | Steel | Plain | 5/16 x 3/8 x 12 | key machine rectangle | 12 |
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| Jackson | MS | Machine Key (Square & Rectangular) | Steel | Plain | 5/16 x 1/2 x 12 | key machine rectangle | 3 |
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| Jackson | MS | Machine Key (Square & Rectangular) | Steel | Plain | 3/8 x 5/8 x 12 | key machine rectangle | 6 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M10 x 16 x 110 | m10 x 16 x 110 shaft key round ends steel din 6885 | 3 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M11 x 18 x 63 | m11 x 18 x 63 shaft key round ends steel din 6885 | 8 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M5 x 5 x 25 | m5 x 5 x 25 shaft key round ends steel din 6885 | 13 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M6 x 6 x 20 | m6 x 6 x 20 shaft key round ends steel din 6885 | 50 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M6 x 6 x 28 | m6 x 6 x 28 shaft key round ends steel din 6885 | 92 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M7 x 8 x 20 | m7 x 8 x 20 shaft key round ends steel din 6885 | 75 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M7 x 8 x 40 | m7 x 8 x 40 shaft key round ends steel din 6885 | 8 |
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| METRO IND | OH | Machine Key (Square & Rectangular) | Steel | Plain | M8 x 12 x 40 | m8 x 12 x 40 shaft key round ends steel din 6885 | 9 |
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| Jackson | MS | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 3/4 x 12 | 1/2 x 3/4 x 12 key machine rectangle high carbon steel bilateral astm a29 plain finish | 9 |
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| MAINSOURC | NH | Machine Key (Square & Rectangular) | Steel | Plain | M4 x 4 x 20 | m4 x 4 x 20 din 6885a parallel key st | 150 |
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| MAINSOURC | NH | Machine Key (Square & Rectangular) | Steel | Plain | M5 x 5 x 32 | m5 x 5 x 32 din 6885a shaft key st | 46 |
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| YANKEE | NH | Machine Key (Square & Rectangular) | Steel | Plain | M4 x 4 x 20 | m4 x 4 x 20 parallel key w/round end-plain | 50 |
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| Endries | WI | Machine Key (Square & Rectangular) | Plain | 1/2 x 3 1/4 | 1/2x3-1/4 square machine key undersized plain | 50 |
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| Endries | WI | Machine Key (Square & Rectangular) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 x 3 | 1/2x3 18-8 stainless steel square machine key | 25 |
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| Endries | WI | Machine Key (Square & Rectangular) | Plain | 1/4 x 7/32 x 4 1/2 | 1/4x7/32x4-1/2 rectangular machine key | 14 |
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| Endries | WI | Machine Key (Square & Rectangular) | Plain | 1 x 6 | 1x6 square machine key undersized plain | 15 |
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| Endries | WI | Machine Key (Square & Rectangular) | Plain | 1/2 x 7 1/2 | 1/2x7-1/2 square key with one radial end +.001-.000 | 18 |
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| Endries | WI | Machine Key (Square & Rectangular) | Plain | 3/16 x 1 1/8 | 3/16x1-1/8 square machine key undersized plain | 300 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 3/8 x 1 5/8 | 3/8x1-5/8 square machine key undersized plain | 340 |
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| Endries | WI | Machine Key (Square & Rectangular) | Plain | M14 x 9 x 50 | 14x9x50 parall key w/rad ends plain din 6885a | 240 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 1 7/8 | 1/2x1-7/8 square machine key undersized plain | 40 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 1/4 x 1 | 1/4x1 c1018 square machine key undersized plain | 351 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | M10 x 10 x 35 | M10x10x35 +.000/-.036 1045 square key w/rad ends | 8 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 3/4 x 4 .001 | 3/4x4 in. square key +.001-.000 | 18 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 5/8 x 5 1/2 | 5/8x5-1/2 square machine key undersized plain | 13 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | 5/8 x 4 .001 | 5/8x4 in. square key +.001-.000 | 38 |
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| Endries | WI | Machine Key (Square & Rectangular) | Steel | Plain | M22 x 14 x 160 | 22x14x160 parallel key round both ends plain din 6885a | 96 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | M10 x 8 x 70 | m10 x 8 x70mm parallel key stl din 6885a-870870 | 30 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | M6 x 6 x 16 | m6 x 6 x16mm parallel key stl din 6885a-870870 | 80 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 6 x 4 x 18 | 6 x 4 x 18 parallel keys bn 870 | 150 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 1/8 x 7/8 | 1/8 x 7/8 square key squared ends stl | 1400 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 3/16 x 1/2 | 3/16 x 1/2 square key squared ends stl | 50 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 6.5 | square mast pin 6.5 mat 1018 | 610 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 1/4 x 1/4 x 1 1/4 | 1/4 x 1/4 x 1-1/4 grade 1018 plain undersized form a machine key | 30 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 1/4 | key 1/4 sq. x 1.00 lg form b carbon steel | 50 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | M8 x 7 x 45 | m8 x m7 x 45mm form b machine key | 616 |
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| OneMonroe | NC | Machine Key (Square & Rectangular) | Steel | Plain | 3/32 x 1 | 3/32 x 1 square key squared ends stl | 90 |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | 5 x 5 x 25 din 6885 a a4 stainless steel parallel key with round ends parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | 6 x 6 x 20 din 6885 a a4 stainless steel parallel key with round ends parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M14 x 9 x 56 | 14 x 9 x 56 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M5 x 5 x 25 | 5 x 5 x 25 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M5 x 5 x 14 | 5 x 5 x 14din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M25 x 16 x 160 | 25 x 16 x 160 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M10 x 8 x 50 | 10 x 8 x 50 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M70 x 36 x 400 | 70 x 36 x 400 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M14 x 9 x 125 | 14 x 9 x 125 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M8 x 7 x 100 | 8 x 7 x 100 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M4 x 4 x 12 | 4 x 4 x 12 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M36 x 20 x 160 | 36 x 20 x 160 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M8 x 7 x 28 | 8 x 7 x 28 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M10 x 8 x 30 | 10 x 8 x 30 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M12 x 8 x 100 | 12 x 8 x 100 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M6 x 6 x 22 | 6 x 6 x 22 din 6885 a plain finish parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M6 x 6 x 18 | 6 x 6 x 18 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M10 x 8 x 20 | 10 x 8 x 20 din 6885 a plain finish parallel key with square ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M10 x 8 x 36 | 10 x 8 x 36 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | Steel | Plain | M8 x 7 x 35 | 8 x 7 x 35 din 6885 a plain finish parallel key with round ends | inquire |
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| Liberty | IL | Machine Key (Square & Rectangular) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 x 6 x 25 | M6x6 x 25 long square machine key round edges 18 -8 304 undersize din 6885 | 10 |
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| Liberty | IL | Machine Key (Square & Rectangular) | Steel | Plain | 6 | mx3mm long square machine key round edges din 885 undersize din 885 undersize | 500 |
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| Irwin Ind | Ont | Machine Key (Square & Rectangular) | Steel | Plain | 5 x 5 x 20 | 5 x 5 x 20mm steel shaft key | 868 |
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| Irwin Ind | Ont | Machine Key (Square & Rectangular) | Steel | Plain | 1/4 x 1/4 x 1 1018 1045 | 1/4x1/4x1 machine key 1018-1045 steel | 51 |
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| Irwin Ind | Ont | Machine Key (Square & Rectangular) | Steel | Plain | M5 x 5 x 20 | m5 x 5 x 20 din 6885b parallel key | 90 |
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| Century | FL | Machine Key (Square & Rectangular) | Steel | Plain | 1/4 x 1 3/4 | 1/4 x 1 3/4 square key (STEEL) (STEEL) | 100 |
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| Century | FL | Machine Key (Square & Rectangular) | Steel | Plain | 3/4 x 3/4 x 6 | 3/4 x 3/4 x 6 square key steel | 25 |
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| Century | FL | Machine Key (Square & Rectangular) | Steel | Plain | 5/8 x 5/8 x 2 1/2 | 5/8 x 5/8 x 2 1/2 square key steel | 50 |
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| Ababa | CA | Machine Key (Square & Rectangular) | Steel | Zinc/Clear | M7 | 7mm square tool key zinc alloy nickle pltd | 10 |
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| Purchase | MO | Machine Key (Square & Rectangular) | Steel | Plain | 3/16 x 1 | 3/16 x 1 square key | 211 |
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| Purchase | MO | Machine Key (Square & Rectangular) | Steel | Plain | M5 x 5 x 14 | m5 x 5 x 14 machine key w/ rounded ends stl plain | 100 |
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| MMCC | IL | Machine Key (Square & Rectangular) | Steel | Plain | M12 x 8 x 90 | shaft key din 6885 steel plain | inquire |
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| MMCC | IL | Machine Key (Square & Rectangular) | Steel | Plain | M4 x 4 x 30 | shaft key din 6885 steel plain | inquire |
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| MMCC | IL | Machine Key (Square & Rectangular) | Steel | Plain | M18 x 11 x 90 | shaft key steel plain a18x11x90 din 6885 | inquire |
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| MMCC | IL | Machine Key (Square & Rectangular) | Steel | Plain | M12 x 8 x 75 | shaft key din 6885 steel plain | inquire |
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| MMCC | IL | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M10 x 8 x 50 | shaft key a4 a10x8x50 din 6885 a4 s/s class 12.9 plain | 5 |
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| MMCC | IL | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M12 x 8 x 50 | shaft key a4 a12x8x50 din 6885 a4 s/s class 12.9 plain | inquire |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 3/16 x 1 | key mach square under st (pl) 3/16x1 (W0C0) | 28,000 |
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| WDMB | IA | Machine Key (Square & Rectangular) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/16 x 3/4 | key mach square b under sst 303 3/16x3/4 (W0C0) | 5,040 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | key mach square st (pl) 1/4x1 1/8 reva (W000) | 600 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 8 x 7 | feathkey c45c a 8x7x80 din 6885 (W010) | 300 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 10 x 8 | feathkey c45c a 10x8x45 din 6885 (W050) | 2,451 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 1/2 x 5/8 x 2.285 | key rect under st 1/2x5/8x2.285 (W010) | 92 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 6 x 6 | feathkey c45c a 6x6x20 din 6885 (W010) | 1,000 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 6 x 6 | feathkey c45c a 6x6x50 din 6885 (W010) | 500 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 5 x 5 | feathkey c45c a 5x5x30 din 6885 (W010) | 800 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 1/4 x 1/4 x 1 7/8 | key mach us sq b 1/4x1/4x1 7/8 (W050) | 653 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 3/8 x 3/8 x 2 | key mach us sq b 3/8x3/8x2 (W040) | 651 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 8 x 7 | feathkey c45c a 8x7x30 din 6885 (W010) | 520 |
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| WDMB | IA | Machine Key (Square & Rectangular) | Steel | Plain | 3/16 x 3/16 x 3/4 | key mach us sq b hard 3/16x3/16x3/4 (W050) | 303 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M10 | x8/x100 parallel key stl din 6885a | 30 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M10 | x8/x32 parallel key prnt stl din 6885a | 392 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M10 | x8/x56 parallel key stl din 6885a | 28 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M14 | x9/x 38 parallel key sq end stl | 75 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M2 | x2/x14 parallel key stl din 6885a | 100 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M2 | x2/x20 parallel key stl din 6885a | 238 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M2 | x2/x6 parallel key stl din 6885a | 229 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M2 | x2/x8 parallel key stl din 6885a | 202 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M3 | x3/x14 parallel key stl din 6885a | 255 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M3 | x3/x20 parallel key stl din 6885a | 161 |
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| FTS | OH | Machine Key (Square & Rectangular) | Steel | Plain | M3 | x3/x 7 parallel key sq end print stl | 140 |
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| TSF | TX | Machine Key (Square & Rectangular) | Steel | Plain | M3 x 3 x 6 | square key 3mm x 3mm x 6mm lg plain | 150 |
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| ACF | CA | Machine Key (Square & Rectangular) | Steel | Plain | M2 x 2 x 6 | M2xm2x6 metric parallel key steel | 100 |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M14 x 9 x 40 | 14x9 x 40 a a4 stainless steel parallel key with round ends din 6885 | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M10 x 8 x 40 | 10 x 8 x 40 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Eurolink | SC | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M18 x 11 x 110 | 18 x 11 x 110 din 6885 a a4 stainless steel parallel key with round ends | inquire |
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| Wurth | Ont | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M10 x 8 x 63 | feathkey din6885 a a4 10x8x63 | 40 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M6 x 6 x 20 | feathkey din6885 a a4 6x6x20 | 149 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | 316, 317, A4 Stainless | Plain | M10 x 8 x 60 | feathkey din6885 a a4 10x8x60 | 98 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 8 x 7 | feathkey din6885 c45c a 8x7x22 | 387 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 8 x 7 | feathkey din6885 c45c a 8x7x45 | 700 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 14 x 9 | feathkey din6885 c45c a 14x9x75 | 195 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 10 x 8 | feathkey din6885 c45c a 10x8x60 | 150 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | Steel | Plain | M45 x 20 x 12 | feathkey din6885 c45c b 20x12x125 | 20 |
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| Wurth | Ont | Machine Key (Square & Rectangular) | Steel | Plain | 7/16 x 5/8 x 3 | key rect over st 1045 (pl) 7/16x5/8x3 | 9 |
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| Wurth Ada | MN | Machine Key (Square & Rectangular) | Steel | Plain | M5 x 5 x 45 | feathkey din6885 c45k a 5x5x45 | 1,500 |
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| Wurth Ada | MN | Machine Key (Square & Rectangular) | Steel | Plain | M4 x 4 x 14 | feathkey din6885 c45k a 4x4x14 | 1,500 |
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