Square neck bolts (1) round head square neck bolts: GB14 / DIN603 (2) less than half head square neck bolts: GB12 (3) low semi-circular head square neck bolts: GB801 Notes: square neck bolts carriage bolts and hex-head screws (1 ) hexagon socket head screws: GB70 / DIN912 (2) Hexagon socket set screws: BG70 / DIN913 (3) Hexagon tip set screws: within GB78 / DIN914 (4) countersunk head Socket Head tail set screws: GB79 / DIN915 (5) Hexagon socket set screws: Hexagon thin head screws DIN7991 (7) inside:: GB80 / DIN916 (6) hex head screws DIN7984 (8) a Cypriot screws: ISO7379 stainless steel hex bolts stainless steel Hex Bolts, also known as stainless steel hex screws, or simply as stainless steel hex bolts. The material is stainless steel, is playing with stainless steel screws wire made of hexagonal bolts pier. Stainless steel hex screws are stainless steel 201, stainless steel 304, Weifang Shandong stainless steel screws, stainless steel 316 and so on. Depending on the stainless steel, Shandong stainless steel screws, market pricing is different, the material, the better, the higher the price. Stainless steel screw-locking solutions and precautions: users in the use of stainless steel screws can also do their own preventive measures, such as slowing the rate locked in a stainless steel screw or nut butter tooth pattern, graphite, mica Zhu to lubricate the inside and outside in order to reduce the chances of tooth pattern lock to be supporting different materials assembled in the actual work environment under the conditions permit, such as SUS316 stainless steel screws with nuts or nut SUS304, SUS316 or SUS304 stainless steel screws with nuts and other cross-type complex. For a complete easy to solve such problems can be directly exercise power our Jinan, Shandong stainless steel screws, stainless steel screws Shandong Jinan Road ground is provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) strong, credible, in Jinan, Shandong hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinan Road ground into the brilliant and you work for a better future!