The main products are: hex bolts, hex socket head screws (cup head), hexagon socket set screws (concave side processed rice), Hexagon set screws with flat (flat side processed rice), Hexagon tip set screws (tip Jimi), Hexagon set screws column (column side processed rice), countersunk head socket screws (flat glass), in the round head hex screws (round cup), cross recessed pan head machine screws, cross recess head machine screws, cross recessed flat head machine screws, cross recessed pan head self tapping screws, cross recessed countersunk head self-tapping screw, cross recessed large flat head self tapping screws, screw the whole tooth (teeth), hex nuts, France Portland nuts, nylon nuts, cap nuts, wing nuts, flat washers, spring washers, serrated washers, cotter pins, etc. Mainly used for: environmental protection equipment, medical equipment, communications equipment, power facilities, electronic products, food machinery, petrochemical, ship fitting, valve piping, building walls, outdoor occasions. Second, thread lock Analysis: a thread with thread lock deflection angle is too large due to: A. Screws, nuts in the process due to the pre-locking force when the cause is not caused by uneven parallel flange faces. Namely: flange and the locking screw not perpendicular yanggu stainless steel screws, so that the screw and nut thread acting surface is not completely in contact (a tilt angle, shown in Figure 4), resulting in the deflection angle becomes large threaded engagement: Yanggu stainless steel screws, stainless steel screws, 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 and other 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 and you work into the brilliant, for a better future!