1)galvanized bolts and nuts 2)Grade:4.8,6.8,8.8,10.9,12.9 3)Material:Q235,45#,35K,40Cr,35CrMo,A3 4 Delivery time:30 days SizeScrew-pitch (P)Head Thickness(K)Head Width(S)Length BL≤125125200M101.56.41645-100263245M121.757.51850-120303649M1428.82160-140344053M162102465-160384457M202.512.53080-200465265M222.5143490-220505669M243153690-240546073M2731741100-260606979M303.518.746110- ...