Premium Pro Grade Aluminum Rivet Backup Washers 3/16 Inch Hella Durable 100 Pack For Thin Soft Materials Straight Up Smooth Fastener Installations Dead Nuts Secure Grip Silver

100 Pack Aluminum Rivet Backup Washers 3/16 Inch
✔️ Silver aluminum discs distribute clamping force on thin sheets

These metal support discs stop fasteners from pulling through fragile surfaces during assembly work. They spread mechanical load evenly across wide areas, making them ideal for roofing, automotive trim, and light gauge panel projects where standard heads would crush the substrate.

✅ Matches rivet material composition for consistent thermal response
✅ Flat profile maintains alignment while driving hard into soft composites
✅ Pre-drilled center hole aligns perfectly with common shank sizes
✅ Corrosion resistant finish handles workshop moisture and outdoor exposure

💡 What role do backup washers play in blind rivet applications? They provide a handy backing plate that keeps soft metals from denting when you set a rivet. - Spread pressure across wide spots for tighter joints - Stop thin plates from warping under hammer blows - Cut cleanup time by holding everything steady while you drive fasteners