Bolts and Nuts 1. Material: Steel,Stainless steel, Brass etc. 2 ... "-4" 3. Specification: Din, IFI, JIS...Fasteners,nuts,bolts,nuts and bolts Features: 1) From M3 to M30 2) Low-carbon ... and mid-carbon steel Packing: Carton,Fasteners,nuts,bolts,nuts and boltsFeatures: 1) From M3 to M302) Low- ... (qingdao Office):NO.2,Tariff-freeZone,Qingdao,Shandong,China. hex bolts and nuts m 12