Heavy Duty Copper Flat Washers 10 Pack 16.5mm Inner Diameter By 30mm Outer Diameter By 3mm Thick Hella Tough Hardware For Screw And Bolt Fixes On Garage Projects

Heavy Duty Copper Flat Washers 16.5mm ID 30mm OD 3mm
✔️ Copper washers 16.5mm ID / 0.64 inch bore, 30mm OD, 3mm thick, 10 pack

This 10-pack of copper flat washers spreads load evenly around bolts and nuts to stop them from pulling through soft materials or damaging surfaces. They make a handy swap for worn-out parts in garage gear, furniture builds, and DIY repairs where you need a durable spacer that handles tightening pressure without bending.

✅ Copper build offers high hardness and resist wear during repeated cycles of use
✅ 16.5mm ID / 0.64 inch inner fit most hex bolts while 30mm OD / 1.18 inch face holds torque
✅ 3mm thick / 0.12 inch depth adds strength to secure loose screws and keep structures tight
✅ Flat design creates a smooth bearing surface under nuts to guard against friction

💡 Why use copper flat washers instead of steel in bolted joints?
Copper flat washers bring a handy solution to common fastening headaches because they soften the stress on threaded connections.
- Copper conducts heat well to release friction tension when you crank down bolts tight
- Soft metal fill works overtime to lock screws in place on crooked or bumpy surfaces
- Wear resistance keeps copper washers lasting longer through tough machine vibration and shifts

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