Locking solve previously encountered a customer, Zibo stainless steel ball valves, stainless steel screws company needs is the need for locking. Simply say is to make stainless steel screws used on the product material, stainless steel screws will not lightly make the fall. Need more fastening screws together with the product materials. For stainless steel screw locking solutions, Qingdao stainless steel ball valve, there are two solutions. Then the following two statements resolve stainless steel fasteners locking scheme. 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 locking resolve previously encountered a client, stainless steel ball valves, stainless steel company needs is the need for locking screws. Simply say is to make stainless steel screws used on the product material, stainless steel screws will not lightly make the fall. Need more fastening screws together with the product materials. For the stainless steel screw locking solutions, there are two solutions. Then the following two statements resolve stainless steel fasteners locking scheme. Stainless steel ball valves, Jinan Road ground, Weihai stainless steel ball valve provided by the Jinan Daoqin Trading Company. Stainless steel ball valves, Jinan Road ground, Weihai Road ground stainless steel ball valve is Jinan Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or image on the telephone, to obtain the latest information, contact: Chuan-use.