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#4 Tooth Lock Washers (ASME B18. 21.1)
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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| Search Results Sponsored by Fasteners & Metal Products, your source for Int. & Ext. Tooth Lock Washers. For more results, visit fastmetalproducts.com | ||||||||
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| Supplier | Loc | Type | Material | Finish | Size | Description | Qty | |
| Buy Tooth Lock Washers from one of our FCH Network Members | ||||||||
| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 external tooth lockwashers steel zinc trivalent clear b18.21.1 | 39300 |
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| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 ext tooth lockwashers stainless steel b18.21.1 | 27274 |
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| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 internal tooth lockwasher steel zinc trivalent clear b18.21.1 | 11000 |
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| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 int tooth lockwashers stainless steel b18.21.1 | 7885 |
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| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4 | #4 int tooth lockwashers stainless steel passivated b18.21.1 | 2200 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 internal tooth lock stl zc b18.21.1 () () () | 12787 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 external tooth lock stl zc b18.21.1 () () () | 651 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 internal tooth lock 410 s/s b18.21.1 () () () | 10000 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 internal tooth lock 300 s/s b18.21.1 () () () | 1767 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Yellow | #4 | #4 internal tooth lock stl zy b18.21.1 () () () | 6300 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Passivated | #4 | internal lock 304ss MS35333-153 b18.21.1 () () () | 3700 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | #4 | #4 ss/410 internal/tooth- MS35333-70 b18.21.1 () () () | 5000 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | #4 | #4 ss/410 external/tooth- MS35335-57 b18.21.1 () () () | 700 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Cadmium/Yellow | #4 | internal lock MS35333-36 b18.21.1 () () () | 17375 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 ext tooth l/w 400 s/s b18.21.1 | 2200 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 int tooth l/w 400 s/s b18.21.1 | 10482 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 int tooth l/w hrd stl znc b18.21.1 | 5400 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 ext tooth l/w hrd stl znc b18.21.1 | 12045 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Yellow | #4 | #4 int tooth l/w trivalent hrd stl yel znc b18.21.1 | 1566 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 ext tooth l/w 400 s/s b18.21.1 | 300 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 int tooth l/w 400 s/s b18.21.1 | 100 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 int tooth l/w hrd stl znc b18.21.1 | 900 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #4 | #4 internal tth l/w stl zi 240020 b18.21.1 | 2324 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Black Oxide | #4 | #4 external tooth lock steel black oxide 04WEB b18.21.1 | 13000 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 external tth l/w 410 ss #4 EXT TTH L/W 410 SS b18.21.1 | 370 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 internal lock zinc b18.21.1 | 11314 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 external tooth lock washr sst 18-8 b18.21.1 | 500 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 external tooth lock washr sst 18-8 b18.21.1 | 9961 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 internal tooth l/w 410 s/s b18.21.1 | 500 |
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| OSSCO | RI | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | #4 external tooth l/w 18-8 304 b18.21.1 | 1,000 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 external tooth l/w 410 s/s b18.21.1 | 9500 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 internal tooth l/w zinc b18.21.1 | 257 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #4 x 410 | #4 internal lockwasher 410 b18.21.1 | 100 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Silicon Bronze | Painted | #4 | #4 internal star lock washer bronze b18.21.1 | 1300 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 internal star lock washer stainless steel 410 b18.21.1 | 300 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | #4 internal star lock washer steel zinc plated b18.21.1 | 3300 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | #4 external star lock washer stainless steel 410 b18.21.1 | 380 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #4 | #4 external star lock washer steel b18.21.1 | 1400 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Black Oxide | #4 | washer lock external star #4 steel black oxide & wax b18.21.1 | 46600 |
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| THRDFAST | FL | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | external tooth l/w b18.21.1 | 147 |
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| THRDFAST | TN | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | #4 | external tooth l/w 18-8 ss b18.21.1 | 4,000 |
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| THRDFAST | TN | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | 410 ss external tooth l/w b18.21.1 | 1,720 |
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| THRDFAST | AL | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | #4 | 410 ss external tooth l/w b18.21.1 | 200 |
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| THRDFAST | FL | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | #4 | internal tooth l/w b18.21.1 | 3500 |
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| All Size | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | #4 | #4 ext. tooth lock washer b18.21.1 | 1,455 |
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