Heavy-Duty 5/16 in Split Lock Washer, Zinc Plated, 100 Pack
✔️ 100-pack zinc-plated split lock washer for vibration

These 5/16 in split lock washers are heavy-duty fasteners designed to prevent loosening from vibration and corrosion. Zinc-plated for durability, they're ideal for machinery, automotive, and home projects where bolts need to stay tight under dynamic loads.

✅ Size: 5/16 in outer diameter
✅ Material: zinc-plated steel for corrosion resistance
✅ Locking action: offset split ends bite into mating material
✅ Pack: 100 pieces for heavy-duty projects

💡 What role does a split lock washer play in resisting loosening under dynamic loads? This handy locking feature helps bite into the mating surfaces and maintain clamping force.

• handy for preventing bolt loosening under vibration
• works with like nuts and bolts of similar diameter
• ideal for machinery, automotive, and home projects
• pairs with zinc-plated hardware for durable fastening