8 - 1.25 x 30mm 13mm Indented Hex Head 17mm Outside Diameter Washer Black Organic Finish Metric Type CA Flange Bolts Compare with: Auveco #12348, G.M. # 11500971, # 11515619 GM# 11504492, Car Pak # 88-6549, 886549, W&E # 5984, Crest / Midwest # CRX493, CRX699, Disco # 5697PK, 5697B, Wurth # 150159620, S&R # 216252, Kimball / Midwest # 10553