Bolts, nuts, Screws, Washers, Thread Rods, Pin, Rivet, Anchors and construction accessories,and Mechanical accessories in carbon steel,stainless steel,alloy steel,brass & nylon,Production is acc. To DIN,IFI,BS,ISO,AS ,UNI,JIS,GBor Non-standard ,OEM ,or drawings . Samples . etc . GB:530 5780 5782 5784 5781 5783 1228 5785 5786 5787 14 10 8 35 37 901 15389 70 52 6170 6175 1229 55 53 54 6171 6176 6177 DIN:558 601 931 933 960 961 6921 603 608 912 7990 7991 6914 571 186 529 3570 835 916; 975 976; 934 555 6915 5587 6334 439 085 557 6923;125 9021 6916 436 7989 127 ISO:4014 4015 4016 4017 4018 7411 7412 8676 8765 4762 10642 4032 4034 4775 4036 8673 6161 7091 ANSI:B18.2.1/2/3/4 B18.5.2.1M B18.3 B18.6.4 B18.22/21.1;IFI 541 149 111 513 563 538 136 528 128 145 513/ AS:1111 2451 1390 B108 BS:1769 3692 4190 4395-1 7419 2470 4168 1769 3690 4395 4190 1769 3410 4933 JIS B:1180 1186 1189 1171 1182 1166 2809 1176 1194 1181 1163 1170 1256 1251 UNI:5737 9327 5933 5587 5588 5589 704 6952