5/16" (8mm) Hole Size Head Size: 11/16" x 1 5/16" Stem Length: 11/16" Gray Nylon Rocker Panel Moulding Clips Compare with: Auveco #20809, G.M. # 10352797, Crest / Midwest # CRX19682, Disco # 10489PK, 10489B, Kent / Lawson # KT13780, S&R # 421395