Main products include: 304/316 / 316L GB (GB) / German standard (DIN) / Japanese standard (JIS), such as stainless steel screws series: cup head (DIN912), flat glass (DIN7991), round cup (ISO7380), machine meters (DIN916, DIN915, DIN914), a Cypriot (ISO7379), glottal (PT, NPT, PG) hex head bolts (GB5783, GB5782), hex nuts (GB6170 316L Jinan screws, DIN934, etc.), studs, miniature electronic screws, threaded rods, flat washers, spring rings, pins, keys, thread jacket and so on. Teeth and studs (2) studs -bm = 1d: GB897 / DIN938 (3) studs -bm = 1.25d: GB898 / DIN939 (4) studs -bm = 1.5d: GB899 (5) stud -bm = 2d: GB900 (1) teeth: GB15389 / DIN976 (6) and other long stud: GB901 / DIN976 Jinan Jinan Dongming screw bolt screws | Jinan Road ground (certified) | screws from Jinan Jinan Daoqin Trading Limited. Jinan Daoqin Trading Company (daoqinshangmao.com) Shandong Jinan, hardware accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinan Road ground in leadership with the staff warmly welcome all inquiries negotiations to create Jinan Daoqin a better future.