Fifty Piece One Quarter External Tooth Lock Washer Set In 304 Stainless Steel With Multi Tooth Star Design Beefy Professional Grade Locking Fasteners Silver Tone For Auto DIY Projects And Heavy Duty Hardware

50-Piece 1/4 External Tooth Star Lock Washers, 304SS
✔️ ID 6.5mm(0.26"), OD 12.5mm(0.49"), T 0.7mm(0.03"), 304SS

These external tooth lock washers come in a 50-piece set and are made from 304 stainless steel. They’re designed to prevent fastener loosening by applying spring force and increased friction between the bolt head and surface, making them ideal for automotive, DIY, and heavy-duty hardware projects. The star design bites into the mating surface for a tight, non-slip fit and they’re reusable for quick maintenance.

✅ 1/4" external tooth lock washer, ID 6.5mm (0.26"), OD 12.5mm (0.49"), T 0.7mm (0.03").
✅ 304 stainless steel, high hardness, corrosion resistant, burr-free finish.
✅ Star multi-tooth design provides extra friction and resistance to rotation
✅ 50-piece pack is handy for auto, DIY, and heavy-duty projects

💡 What is a lock washer used for in fastened joints?

Lock washers prevent loosening in vibrating joints by adding friction and a spring force between the fastener head and base. - lock washer prevents loosening in high-vibration equipment - external tooth star design increases friction for stable joints - 304 stainless steel provides corrosion resistance for auto and marine use - handy for DIY projects and heavy-duty hardware setups