10pcs lot Knife Handle Bolt Rivets Scale Screw Fastener Nut Flat Round Amazon.com: Kyuionty 60 Pcs Screwback Round Head Rivet with Pull Ring Uxcell 1 2inch ORing Button Stud Rivets Screw Back Screws Rivet Dim 8mm Cap Silver Chicago Screw Rivets Leather Screw Button Book Binding HOMEMAXS 30 pcs Small Rivets for Leathercraft Binding Post Screw for 5PCS Rivet Screws Fasteners for Leatherwork Bags Belts DIY Projects. Half Dollar silver screw rivet fastener, can be used as a pin or brooch, or for craft and meding projects! Each is 1. 25" in diameter.