Bolt, Nut, Customized Fastener manufacturer / supplier in China, offering 1/4 1/2 3/8 Yellow Galvanized Carbon Steel Grade 4.8 8.8 High Tensile Full Thread Rods M6 M8 M10 M12 M16 M20 B7 Stud Bolts, Customized Oil Industry Price Stainless Steel Alloy Steel 3-1/2 1-5/8 3/4 5/16 A453 Grade660 5inch A286 Thread Rod, Full Threaded 2-1/2 3-1/2 5/8 Ceramic Primer Fluoropolymer PTFE A543 B23 Class 1 Xylan1424 5 Inch B7 L7 Stud Bolt and so on.