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1/4 Woodruff Keys
Woodruff keys, sometimes called Half-Moon Keys, are semicircular shaped keys, such that, when installed into a semi-circular pocket keyway in a shaft, they leave a protruding tab.. They are used to improve the concentricity of the shaft and the mating part, which is critical for high speed operation. They are called “keys” because they lock a component to the shaft by means of a corresponding keyway in a shaft.
102 results, (click on any line for more information)
| Buy Woodruff Keys from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Hayes | CA | Woodruff Key | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 1/4 x 7/8 | 1/4 x 7/8 (dia) woodruff key monel | 8 |
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| Endries | WI | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | #18 1/4x1-1/8 carbon woodruff key | 5 |
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| Hayes | CA | Woodruff Key | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 1/4 x 3/4 | 1/4 x 3/4 (dia) woodruff key monel | 1 |
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| Hayes | CA | Woodruff Key | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/4 x 3/4 | 1/4 x 3/4 (dia) woodruff key 18-8 ss | 52 |
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| Century | FL | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 x 1 | 1/4 x 1 woodruff keys 1/4 x 1 woodruff keys alloy steel | 75 |
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| METRO IND | OH | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | 1/4x1 1/2 woodruff key 24 | 88 |
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| METRO IND | OH | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | 1/4x1 1/4 woodruff key 21 | 33 |
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| METRO IND | OH | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | 1/4x1 1/8 woodruff key 18 | 89 |
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| METRO IND | OH | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | 1/4x1 3/8 woodruff key 22 | 87 |
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| METRO IND | OH | Woodruff Key | Steel | Plain | 1/4 x 3/4 | 1/4x3/4 woodruff key 91 | 417 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 3/4 #91 | woodruff key carbon finish | 139 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 7/8 | #a woodruff key carbon finish | 54 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 #22 | woodruff key carbon finish | 96 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 #21 | woodruff key carbon finish | 172 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 #18 | woodruff key carbon finish | 75 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 #24 | woodruff key carbon finish | 151 |
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| Jackson | MS | Woodruff Key | Steel | Plain | 1/4 x 1 #15 | woodruff key carbon finish | 175 |
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| SWACO | OH | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4x7/8 woodruff key #807 a | 42 |
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| SWACO | OH | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | 1/4x1 1/4 woodruff key #21 #810 | 7 |
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| Hayes | CA | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | 1/4x1 1/8 (dia) woodruff key stl pln | 47 |
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| Hayes | CA | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | 1/4x1 1/4 (dia) woodruff key stl pln | 9 |
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| Hayes | CA | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | 1/4x1 3/8 (dia) woodruff key stl pln | 9 |
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| Hayes | CA | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | 1/4x1 1/2 (dia) woodruff key stl pln | 95 |
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| Hayes | CA | Woodruff Key | Ni-Cu Alloy (Monel, K-Monel, etc.) | Plain | 1/4 x 1 1/2 | 1/4x1 1/2 (dia) woodruff key monel | 48 |
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| Hayes | CA | Woodruff Key | Steel | Plain | 1/4 x 3/4 | 1/4x3/4 (dia) woodruff key stl pln | 139 |
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| Hayes | CA | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4x7/8 (dia) woodruff key stl pln | 41 |
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| YANKEE | NH | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | woodruff key | 119 |
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| ACCURATE | IL | Woodruff Key | Steel | Plain | 1/4 x 1 | woodruff key | 16 |
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| A-Plus Co | OR | Woodruff Key | Plain | 1/4 x 1 | 1/4 x 1 woodruff key | 77 |
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| A-Plus Co | OR | Woodruff Key | Plain | 1/4 x 3/4 | 1/4 x 3/4 woodruff key | 41 |
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| A-Plus Co | OR | Woodruff Key | Plain | 1/4 x 1 1/8 | 1/4 x 1 1/8 woodruff key | 47 |
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| A-Plus Co | OR | Woodruff Key | Plain | 1/4 x 2 1/8 | 1/4 x 2 1/8 woodruff key | 25 |
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| A-Plus Co | OR | Woodruff Key | Plain | 1/4 x 1 3/8 | 1/4 x 1 3/8 woodruff key | 55 |
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| A-Plus Co | OR | Woodruff Key | Plain | 1/4 x 7/8 | 1/4 x 7/8 woodruff key | 55 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | 1/4 x 1 1/8 woodruff key | 98 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | 1/4 x 1 1/4 woodruff key | 164 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | 1/4 x 1 3/8 woodruff key | 99 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 3/4 | 1/4 x 3/4 woodruff key | 90 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4 x 7/8 woodruff key | 72 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4 x 3/4 #a woodruff key | 20 |
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| OneMonroe | NC | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4 x 7/8 #a woodruff key | 15 |
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| Alma Bolt | MI | Woodruff Key | Plain | 1/4 x 1 1/2 | 1/4 x 1-1/2 #24 | woodruff key | 124 |
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| Alma Bolt | MI | Woodruff Key | Plain | 1/4 x 2 1/8 | 1/4 x 2-1/8 #27 | woodruff key | 94 |
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| Alma Bolt | MI | Woodruff Key | Plain | 1/4 x 2 1/8 | 1/4 x 2-1/8 #127 | woodruff key | 17 |
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| Alma Bolt | MI | Woodruff Key | Plain | 1/4 x 1 1/8 | 1/4 x 1-1/8 #18 | woodruff key | 678 |
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| Alma Bolt | MI | Woodruff Key | Plain | 1/4 x 1 1/2 | 1/4 x 1-1/2 #24 | woodruff key | 2 |
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| Alma Bolt | MI | Woodruff Key | Plain | 1/4 x 2 1/8 | 1/4 x 2-1/8 #127 | woodruff key | 42 |
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| Alma Bolt | MI | Woodruff Key | Steel | Plain | 1/4 x 7/8 | #a woodruff key | 226 |
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| Alma Bolt | MI | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 #21 | woodruff key | 12 |
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| Alma Bolt | MI | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | woodruff key | 7 |
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| Alma Bolt | MI | Woodruff Key | Steel | Plain | 1/4 x 31/32 | #141 woodruff key | 17 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4 x 7/8 woodruff key | 4588 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 31/32 | 1/4 x 31/32 woodruff key | 20 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 1 | 1/4 x 1 woodruff key | 175 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 3/4 | 1/4 x 3/4 woodruff key | 90 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | 1/4 x 1 1/4 woodruff key | 75 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | 1/4 x 1 3/8 woodruff key | 25 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | 1/4 x 1 3/8 woodruff key | 15 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | 1/4 x 1 1/8 woodruff key | 25 |
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| Liberty | IL | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | woodruff key heat treated | 275 |
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| Field Fas | IL | Woodruff Key | Steel | Plain | 1/4 x 3/4 | 1/4 x 3/4 woodruff key hrc 40-50 alloy stl pln | 295 |
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| Endries | WI | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | #21 alloy woodruff key rockwell c hardness 40/50 | 6575 |
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| Endries | WI | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | #21 alloy woodruff key rockwell c hardness 40/50 | 6575 |
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| QCS | OR | Woodruff Key | Steel | Plain | 1/4 x 3/4 | 1/4x3/4 woodruff key carbon steel | 302 |
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| Fastener | OH | Woodruff Key | Steel | Plain | 1/4 x 1 | woodruff key 1/4 x 1 steel plain | | 500 |
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| Mansco | MI | Woodruff Key | Steel | Plain | #24 1/4 x 1-1/2 woodruff key pln | 243 |
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| Mansco | MI | Woodruff Key | Steel | Plain | #15 1/4 x 1 woodruff key pln | 419 |
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| NutsBolts | NE | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | 1/4 x 1 1/2 woodruff key | 7 |
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| Mansco | MI | Woodruff Key | Steel | Plain | 1/4 x 7/8 | a woodruff key rc 40-50 | 1000 |
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| MidStates | MI | Woodruff Key | Steel | Plain | 1/4 x 2 3/4 | r woodruff key | 377 |
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| IPC | VA | Woodruff Key | 316, 317, A4 Stainless | Plain | 1/4 x 7/8 | 1/4x7/8 woodruff key 18-8 ss or 316 ss | 355 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | woodruff key steel (1035) 1/4 x 1 1/4 ((USA STD #810)) | 109 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | woodruff key steel (1035) 1/4 x 1 3/8 ((USA STD #811)) | 55 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | woodruff key steel (1035) 1/4 x 1 1/2 ((USA STD #812)) | 290 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 7/8 | woodruff key steel cs 1/4 x 7/8 ((USA STD #807)) | 1356 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 3/4 | woodruff key steel (1035) 1/4 x 3/4 ((USA STD #806)) | 88 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 2 1/8 | woodruff key steel cs 1/4 x 2 1/8 ((USA STD #817)) | 77 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | woodruff key steel alloy 1/4 x 1 1/2 | 84 |
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| WDMB | IA | Woodruff Key | Steel | Plain | 1/4 x 1 13/16 | woodruff key highpfl st pl 1/4x1 13/16 drw (W0G0) (W0G0) | 1,526 |
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| ISSCO | MO | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | alloy #18 | 1000 |
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| ISSCO | MO | Woodruff Key | Steel | Plain | 1/4 x 2 | carbon #27 | 1400 |
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| OSSCO | RI | Woodruff Key | Steel | Plain | 1/4 x 7/8 | 1/4x7/8 alloy woodruff key | 44 |
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| Delta | TX | Woodruff Key | Steel | Plain | 1/4 x 1 | woodruff key steel alloy 1/4x1 | 94 |
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| FastWare | Sask | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | woodruff key #24 | 75 |
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| FastWare | Sask | Woodruff Key | Steel | Plain | 1/4 x 3/4 | woodruff key #91 | 600 |
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| FastWare | Sask | Woodruff Key | Steel | Plain | 1/4 x 1 1/8 | woodruff key #18 | 365 |
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| SRF | AL | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | woodruff key #21 | - |
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| SRF | AL | Woodruff Key | Steel | Plain | 1/4 x 3/4 | woodruff key #91 | 35 |
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| SRF | AL | Woodruff Key | Steel | Plain | 1/4 x 1 | woodruff key #15 | - |
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| API | IA | Woodruff Key | Steel | Plain | 1/4 x 2 1/8 #127 | woodruff key pl | 42 |
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| OBRIEN | OH | Woodruff Key | Steel | Plain | 1/4 x 3/4 #91 | 1/4x3/4 woodruff key #91 | 700 |
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| OBRIEN | OH | Woodruff Key | Steel | Plain | 1/4 x 1 #808/#15 | 1/4x1 woodruff key #808/#15 | 700 |
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| OBRIEN | OH | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | woodruff key #810 | 500 |
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| THRDFAST | AL | Woodruff Key | Steel | Plain | 1/4 x 1 | woodruff key #15 | 15 |
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| Wurth | IN | Woodruff Key | Steel | Nickel Plated | 1/4 x 7/8 | a woodruff key nickel alloy 1/4 x 7/8 | 2,500 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 3/4 | woodruff key | 16 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 7/8 | woodruff key | 26 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 15/16 | woodruff key | 12 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 1 1/4 | woodruff key | 8 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 1 3/8 | woodruff key | 48 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 2 1/8 | woodruff key | 48 |
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| Valley Nu | WA | Woodruff Key | Steel | Plain | 1/4 x 1 1/2 | woodruff key | 15 |
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