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Tooth Lock Washers
Tooth Lock Washers are often used with machine screws in electrical applications, and are usually smaller diameter An Internal Tooth Lock Washer has teeth around the center hole, while an External Tooth Lock Washer has teeth around the outside. Sometimes tooth lock washers can be concave, and have both internal and external teeth. Larger diameter External Tooth Lock washers are often used to lock nuts onto shafting. In this case the external tabs are bent up to lock the nut in place.
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| Buy Tooth Lock Washers from one of our FCH Network Members | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 1/4 | 1/4 int/external lock zinc | 2600 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 7/8 | 7/8 external lock zinc | 100 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 | 3/4 external lock 18-8 ss | 100 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 | 5/8 external lock 18-8 ss | 97 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 9/16 | 9/16 external lock zinc | 200 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 | 1/2 external lock 18-8 ss | 300 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/16 | 7/16 external lock 18-8 ss | 184 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 external lock 18-8 ss | 1132 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 | 5/16 external lock 18-8 ss | 522 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #12 | #12 external lock 18-8 ss | 524 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #8 | #8 external lock 18-8 ss | 474 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #6 | #6 external lock 18-8 ss | 6400 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 external lock 18-8 ss | 161 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 1 1/2 | 1 1/2 internal lock zinc | 34 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 1 1/4 | 1 1/4 internal lock zinc | 18 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 7/8 | 7/8 internal lock zinc | 100 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 | 3/4 internal lock 18-8 ss | 100 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 | 5/8 internal lock 18-8 ss | 113 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 9/16 | 9/16 internal lock zinc | 149 |
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| Weaver | WA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 | 1/2 internal lock 18-8 ss | 92 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | 1/4 | ms35335-61 (external th l/w 1/4 410ss) MS3533561 | 1880 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Cadmium/Yellow | #4 | ms35335-29 (#4 external th l/w s mech zy) MS3533529 | 1444 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | 7/16 | ms35333-77 (9/16 internal th l/w 400 ss) MS3533377 | 28 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Cadmium/Yellow | #6 | ms35333-37 (#4 internal th l/w stl z&y) MS3533337 | 85 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | 1/4 | ms35333-135 (1/4 internal th l/w 410 ss) MS35333135 | 30 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 5/16 | ms35333-109 (5/16 internal th l/w phos bronze) MS35333109 | 48 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 3/8 | ms16213-63 (3/8 external th l/w ss) MS1621363 | 1000 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #8 | #8 internal tooth l/w stl z/clr | 33365 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #8 | #8 external tooth l/w 400 series ss | 1675 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 internal tooth l/w 400 series ss | 726 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 1/4 | 1/4 internal tooth l/w stl z/clr | 5400 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 1/4 | 1/4 internal tooth l/w 400 series ss | 4837 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #10 | #10 internal tooth l/w 400 series ss | 4000 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M8 | M8 external tooth l/w 18-8 ss | 425 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | M6 | M6 internal tooth l/w steel zinc din 6797j | 1000 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | M5 | M5 internal tooth l/w steel zinc din 6797j | 1400 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | M4 | M4 internal tooth l/w steel zinc din 6797j | 2600 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 3/8 | ms51413-7 (int th l/w 3/8 steel z&y) | 950 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #8 | ms35335-59 (#8 ext th l/w 410 ss c&y) | 200 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | #6 | ms35333-71 (int th l/w #6 410ss) | 400 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M6 | m6 external tooth l/w din 6797a 18-8 ss | 1180 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M3 | m3 internal tooth l/w din 6797j 18-8 ss | 400 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | M12 | m12 metric internal tooth l/w zinc | 59 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | M5 | 5mm internal tooth l/w metric a-2 stainless steel | 900 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | M35-07 | m35 (07) bearing l/w din 5406 mb steel zinc | 35 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Black | M10 | m10 ext serrated l/w din 6798a steel black zinc | 1550 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 5/8 | 5/8 internal tooth lock washer zinc | 2250 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/4 | internal tooth lock | 377 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 5/16 | external tooth lock | 300 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #10 | external tooth lock | 10450 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 1/2 | internal tooth l/w 400 series ss | 400 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | 3/8 | internal tooth l/w | 375 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 9/16 | internal tooth l/w | 511 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/4 | internal tooth l/w ss | 25 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/8 | internal tooth l/w ss | 575 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 1/2 | internal tooth l/w ss | 48 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 7/16 | internal tooth l/w ss | 61 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 5/16 | internal tooth l/w ss | 500 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #12 | internal tooth l/w ss | 250 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #5 | internal tooth l/w ss | 137 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | internal tooth l/w ss | 118 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #3 | internal tooth l/w ss | 74 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #2 | internal tooth l/w ss | 46 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | Silicon Bronze | Plain | #12 | internal tooth l/w | 43 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 1 | 1 external tooth l/w | 1001 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 1 | 1 external tooth l/w 410 s/s | 35 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/4 | external tooth l/w 410 s/s | 70 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 7/16 | external tooth l/w 410 s/s | 32 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 5/16 | external tooth l/w 410 s/s | 285 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #5 | external tooth l/w 410 s/s | 200 |
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| Jackson | MS | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #3 | external tooth l/w 410 s/s | 22 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M100 | (20) bearing l/w mb din 5406 | 9 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M95 | (19) bearing l/w mb din 5406 | 45 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M90 | (18) bearing l/w mb din 5406 | 100 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M85 | (17) bearing l/w mb din 5406 | 94 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M80 | (16) bearing l/w mb din 5406 | 118 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M75 | (15) bearing l/w mb din 5406 | 100 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M70 | (14) bearing l/w mb din 5406 | 89 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M65 | (13) bearing l/w mb din 5406 | 53 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M60 | (12) bearing l/w mb din 5406 | 111 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M55 | (11) bearing l/w mb din 5406 | 132 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M50 | (10) bearing l/w mb din 5406 | 327 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M45 | (09) bearing l/w mb din 5406 | 214 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M40 | (08) bearing l/w mb din 5406 | 138 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M35 | (07) bearing l/w mb din 5406 | 338 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M30 | (06) bearing l/w mb din 5406 | 350 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M25 | (05) bearing l/w mb din 5406 | 150 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M20 | (04) bearing l/w mb din 5406 | 150 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M17 | (03) bearing l/w mb din 5406 | 150 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M15 | (02) bearing l/w mb din 5406 | 150 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | M12 | (01) bearing l/w mb din 5406 | 150 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #8 | internal tooth l/w stl blk | 10650 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #8 | int/external tooth l/w stl z/clr | 100 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #8 | external tooth l/w 400 series ss blk | 107 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #2 | external tooth l/w stl z/clr | 3512 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #2 | external tooth l/w stl blk | 120 |
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| METRO IND | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | M8 | int/external tooth l/w bn 783 | 184 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | external tooth lock | 7000 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 1/4 | external tooth lock | 10000 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #8 | external tooth lock | 20000 |
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| TownCountry | AR | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | external tooth lock | 6000 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | #8 | internal tooth l/w phos bronze | 300 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Phosphate | #6 | internal tooth l/w stl phosphate | 3523 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #6 | internal tooth l/w 400 series ss blk | 365 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | #6 | external tooth l/w phos bronze | 1000 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #6 | external tooth l/w 400 series ss blk | 124 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 5/8 | external tooth l/w 400 series ss | 155 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #5 | internal tooth l/w stl z/clr | 9560 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #5 | internal tooth l/w 400 series ss | 1046 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 1/2 | internal tooth l/w stl z/clr | 500 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 1/2 | external tooth l/w stl z/clr | 2234 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 1/2 | external tooth l/w 400 series ss | 802 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | #4 | internal tooth l/w phos bronze elec tin | 1350 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | #4 | internal tooth l/w phos bronze | 1550 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | internal tooth l/w 400 series ss blk | 1590 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #4 | int/external tooth l/w stl z/clr | 92 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #4 | external tooth l/w stl blk | 3270 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | #4 | external tooth l/w phos bronze | 800 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | external tooth l/w 400 series ss blk | 116 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 7/16 | internal tooth l/w 1222-04 stl z/clr | 1408 |
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| MAINSOURC | NH | Tooth Lock Washer (Int. & Ext.) | Phosphor Bronze | Painted | #3 | internal tooth l/w phos bronze | 692 |
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