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3/8 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 | ||||||||
| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 ext tooth l/w 400 s/s b18.21.1 | 1140 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 ext tooth l/w hrd stl znc b18.21.1 | 4000 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 hvy duty int tooth l/w hrd stl znc b18.21.1 | 243 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 int tooth l/w 400 s/s b18.21.1 | 64 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 int tooth l/w hrd stl znc b18.21.1 | 7286 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Silicon Bronze | Plain | 3/8 | 3/8 internal tooth lock brz b18.21.1 () () () | 1220 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal tooth lock stl zc b18.21.1 () () () | 2828 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 external tooth lock stl zc b18.21.1 () () () | 7791 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 internal tooth lock 410 s/s b18.21.1 () () () | 100 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal tooth lock per dwg stl zc b18.21.1 () () () | 6708 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | Steel | Cadmium/Yellow | 3/8 | internal tooth lock MS35333-42 b18.21.1 () () () | 65 |
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| GLF | OH | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | 3/8 | external MS35335-63 b18.21.1 () () () | 800 |
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| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | Copper | Plain | 3/8 | 3/8 internal tooth locks copper b18.21.1 | 5000 |
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| Irwin Ind | Ont | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 external tooth lock steel zinc trivalent clear b18.21.1 | 20800 |
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| ASMC | IL | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | external tooth lock ss410 b18.21.1 | 1,074 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 ext tooth l/w 400 s/s b18.21.1 | 200 |
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| Ababa | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 int tooth l/w hrd stl znc b18.21.1 | 500 |
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| Century | NY | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 ext tooth lockwasher carbon steel ansi b18.21.1 certification required per 50-5306 ch503-4 confirms to 50-17736 figure 9 plated to 50-407-6 spec (rev b2) drs technologies drs technologies | 500 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 internal tth l/w 410 ss WINSS3/8 b18.21.1 | 500 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 external tth l/w 410 ss 4-EXT-37 b18.21.1 | 5748 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 internal tth l/w 18-8 ss 31-INT-37 b18.21.1 | 821 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Passivated | 3/8 | ms35335-63 lock .375 stn MS35335-63 LOCK WASHER .375 STN b18.21.1 | 2015 |
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| Standard | MA | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 internal tooth washer 410 stainless steel b18.21.1 | -1005 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Zinc/Clear | 3/8 x 96 | 3/8 external tooth lock zinc (96 hrs sst white rust) rohs b18.21.1 | 110000 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Yellow | 3/8 | 3/8 external tooth l/w zinc/yellow b18.21.1 | 7457 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 external duty lock trivalent zinc b18.21.1 | 1422 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 external duty lock trivalent zinc b18.21.1 | 2800 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 internal tooth lock 410 series stainless steel b18.21.1 | 10302 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 410ss internal lock b18.21.1 | 240 |
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| B & K FAST | PA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 external tooth lockwashers zinc b18.21.1 | 1487 |
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| General F | MI | Tooth Lock Washer (Int. & Ext.) | Steel | Plain | 3/8 | 3/8 external tooth lw b18.21.1 | 4980 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 external lockwasher zinc b18.21.1 | 620 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal lockwasher zinc b18.21.1 | 300 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal tooth l/w trivalent zinc b18.21.1 | 1200 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Yellow | 3/8 | 3/8 extra heavy split-lock washer steel yellow zinc b18.21.1 | 2500 |
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| QFC | TX | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 3/8 410ss external lockwasher b18.21.1 | 100 |
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| Bostwick | IN | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 dished internal/external tooth l/w zinc b18.21.1 | 80 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal star lock washer steel zinc alt twist (surplus) .383x.562x.018 b18.21.1 | 5730 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal star lock washer steel zinc alt twist (surplus) .417x.605x.022 b18.21.1 | 1400 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8- | washer lock 3/8 steel zinc plated internal-external star b18.21.1 | 2300 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal star lock washer steel zinc b18.21.1 | 100 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | washer lock 3/8 stainless steel400 external star b18.21.1 | 1200 |
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| JET FITTING | CA | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | washer lock 3/8 steel zinc plated external star b18.21.1 | 150 |
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| Wurth | Ont | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | wsh ext lw a st (zn) 3/8 b18.21.1 | 9200 |
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| THRDFAST | FL | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 410 ss external tooth l/w b18.21.1 | 300 |
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| THRDFAST | FL | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | external tooth l/w b18.21.1 | 90 |
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| THRDFAST | FL | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 410 ss external tooth l/w b18.21.1 | 319 |
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| THRDFAST | OK | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | external tooth l/w b18.21.1 | 400 |
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| THRDFAST | TN | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | external tooth l/w b18.21.1 | 700 |
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| THRDFAST | TN | Tooth Lock Washer (Int. & Ext.) | 400 Stainless (405, 410,416,420,430 etc.) | Plain | 3/8 | 410 ss external tooth l/w b18.21.1 | 360 |
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| THRDFAST | MS | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | external tooth l/w b18.21.1 | 331 |
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| THRDFAST | MS | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | internal tooth l/w b18.21.1 | 96 |
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| KBS | TN | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 internal tooth l/w pltd b18.21.1 | 20,846 |
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| THRDFAST | AL | Tooth Lock Washer (Int. & Ext.) | Silicon Bronze | Plain | 3/8 | sili brnz internal tooth l/w b18.21.1 | 412 |
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| THRDFAST | FL | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | external tooth l/w b18.21.1 | 800 |
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| THRDFAST | AL | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 18-8 ss internal tooth l/w b18.21.1 | 50 |
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| All Size | TX | Tooth Lock Washer (Int. & Ext.) | 300 Stainless (A1,A2, 18-8,304,310 etc.) | Plain | 3/8 | 3/8 int. tooth lock washer s/s b18.21.1 | 1,618 |
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| Davis | IL | Tooth Lock Washer (Int. & Ext.) | Steel | Zinc/Clear | 3/8 | 3/8 int tooth lockwasher-steel zinc b18.21.1 | 3,800 |
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