5/16" (7.8mm) Hole Size Panel Range: .080" - .800" Head Diameter: 3/4" Stem Length: 1 1/16" Black Nylon Shield Retainers Compare with: G.M. # 15975244, Auveco 19832, Car Pak # 99-8111, 998111, Barnes / Kar # CP99-8111, CP998111, Crest / Midwest # CRX15866, Disco # 8862BPK, 8862BB, Kent / Lawson # P24226, Winzer # 503.13012, Kimball / Midwest # 10141