These aluminum 1/8″ inside diameter by 3/8″ outside diameter rivet backup washers are perfect for soft materials or oversized holes. They’re made of high-quality aluminum which offers the highest forms of corrosion resistance, making them great for indoor and outdoor use.
- 1/8″ Inside diameter
- 3/8″ Outside diameter
- Aluminum construction
- 30 Rivet back-up washers per box
