Wheel bolts: B7 thread bolt:UN standard: ASTM A193 diameter:1/4"-3 3/4" length:200mm-6meter surface:self colorASTM A193 thread bolt with heavy nutsB7 thread bolt:UN standard: ASTM A193 diameter:1/4"-3 3/4" length:200mm-6meter surface:self colorRunyou Metals specializes in all kinds of threaded rods in different standards, also can produce special rods according to customer's requirements.1:material: carbon steel; steeless2:standard:DIN975 ANSI GB BSW ASTM A1933:diameter:4mm-56mm 3/16"-3 3/4"4:length:100mm-6000mm 2"-12"5:thread: MM, UNC, UNF,BSW6:surface: self color/plain, zinc plated, hot dip galvanised, black, trivalent yellow7:MOQ: 1ton8:packing: first in plastic bag then in weave bag, late in pallets9:delievery time: 25-30days(this all depends Q'ty of order)