Rivet Diameter: 5/32" (4 mm) Flange Diameter: 7/16" Grip Range: 3/64" - 3/8" Construction: Alum w/ Steel Mandrel Front & Rear Bumper Rivets Compare with: G.M. # 9132667, Auveco # 22088, Clip Lizard # 60280, Disco # 15170PK, 15170B, Kimball / Midwest # 13811, Kent / Lawson # 1481974, Wurth # 150122088