Name: bolts w/hex socket, tappo, rivet, pin axis.Material: class 8.8 steel, 6061, 7075 aluminum.Dimension: Ø10x27mm, Ø10.98x39.28mm, Ø6.94x16.85mm, Ø16.92x34.1mm 1/4-28 UNF 3A.Finish: Cr3 zinc plated, plain.