... Good quality,competitve price. 2.Many types. boltBolts and Nuts 1. Material: Steel,Stainless steel, Brass etc. ... 4"-4" 3. Specification: Din, IFI, JIS... DescriptionBolt and NutStandardDIN, ANSI, ASME, ASTM, IFI, JIS, ASMaterialLow carbon ... all different kinds of bolts, including foundation bolts and stainless steel hex bolts. In addition to stainless ... ,Qingdao,Shandong,China. metal bolts and nuts