5/16 External Internal Combination Tooth Lock Washer 18-8 Stainless Steel 3750 Heavy Duty Bulk Pack Dead Nuts Secure For Wobbly Holes And Relentless Electrical Contact Built To Crush The Grind

Heavy duty fastening solution for tight bolted joints
✔️ 5/16 combo tooth lock washer stainless steel bulk pack

This 5 16 inch external internal combination tooth lock washer is built straight from 18 8 stainless steel to hold down nuts and bolts without giving out under vibration. You will normally mount these washers on electrical panels, machinery frames, and automotive brackets where steady contact and solid grip matter most. Buying in a bulk pack keeps your inventory stocked for large repairs or repeated assembly jobs.

✅ 5/16 inch outer diameter sized hole clearance
✅ External teeth bite metal to stop rotation
✅ Internal ring spreads load across wobbly or oversized holes
✅ Rockwell hardness rating holds up to repeated tightening cycles

💡 What makes a combo tooth lock washer handy for tricky mount points?
- The mixed tooth layout grabs uneven plates dead nuts every time
- The wider inner rim handles offset holes without stripping threads
- Cold formed spring steel eats up road shake and stays put under heat
- Plain stainless finish runs clean on gear boxes or control panels year round

✝️