Lnsda 100PCS 1/4 inch-20 Carbon Steel Rivet Nuts Rivnut Yellow Zinc Plated Finish Flat Head Threaded Insert Nutserts

? WELL MADE: Package includes 100 pieces 1/4-20 insert rivets nuts. Make of high quality carbon steel. Zinc plated. Flat head. Knurled body. ? DURABLE: Rivet nut kits are made of carbon steel, strong rust and corrosion resistant for a long time use; Zinc plated surface help prevent surface damage and fade, anti-oxidation, healthy and lead-free. ? EASY TO USE: Well done! Crushed down fast and do not spin when some torque is used on them. Get you a threaded hole in metal nice and fast. Once installed, they sit tight and secure. ? WIDE APPLICATION: Rust resistant and strength enough to apply in many kinds of heavy duty materials including sheet metal, steel, aluminum, plastic, fiberglass etc. ? WORRY-FREE: Lnsda provide lifetime service for our product quality problem.