1/4 Inch Stainless Steel External Tooth Lock Washers Pack Of 100

Premium 1/4 inch stainless external tooth lock washers
✔️ Pack of 100; 400 series stainless; external teeth grip screws.

These 1/4 inch external tooth lock washers are built from 400 series stainless steel and lock by biting into the screw head, delivering a tight grip in vibration-prone assemblies. They’re handy with pan or button head screws in marine, automotive, and general hardware projects. Each pack is heat sealed and labeled by Marine Bolt Supply for traceability.

✅ 1/4 inch (6.35 mm) external tooth lock washer in 400 series stainless steel
✅ External teeth bite into screw head to resist loosening under vibration
✅ Commonly used with pan or button head screws in hardware assemblies
✅ Pack of 100 washers; heat sealed and labeled by Marine Bolt Supply
✅ Mildly magnetic; corrosion resistance lower than 300 series stainless

💡 What is an external tooth lock washer used for in mechanical assemblies? This handy answer explains how they keep fasteners tight. - They bite into the screw head to resist loosening under vibration. - They pair well with pan or button head screws for a secure hold. - Made from 400 series stainless for strength and mild magnetism.