Aluminum Back Up Rivet Washers for 3 16th Inch Rivets Pack of 250

Premium Aluminum Back-Up Washers for 3/16 Rivets, 250 Pack
✔️ 3/16 in ID, 1/2 in OD aluminum back-up washers, 250 pcs

These aluminum back-up rivet washers sit behind rivets to reinforce joints and distribute load. They’re a sturdy choice for boats, trailers, racecars, aircraft, armor making, and metalworking where moisture and saltwater exposure happen.

✅ Material: Aluminum
✅ Inside Diameter: 3/16 in
✅ Outside Diameter: 1/2 in
✅ Quantity: 250 pieces
✅ For indoor and outdoor use with strong corrosion resistance

💡 What is an aluminum back-up rivet washer used for in riveted assemblies, and how does it improve joint strength?

The aluminum back-up rivet washer spreads load and protects the rivet head. - Improves load distribution and reduces rivet pull-out - Helps prevent deformation around the rivet - Provides corrosion resistance for outdoor or saltwater environments - Compatible with standard rivet sizes such as 3/16 in rivets