1/4" Dia. All Steel Interlock HIGH Strength Rivet, COUNTERSUNK Head, with A .170 - .475 Grip Range (Pack of 25 Pieces) ISSK0808-VL: Amazon.com: Industrial & Scientific
5: Rivet dimensions before and after formation (a) countersunk and (b)... | Download Scientific Diagram
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China Custom Waterproof Galvanized Color Aluminum Aircraft Blind Pop Rivet Double Countersunk Head Threaded Open End Blind Rivet - China Pop Blind Rivet, Aluminum Blind Rivets | Made-in-China.com