Wire Thread Insert

Wire thread insert is a new kind of inner screw thread fastener, It is a new technic which is used to reinforce or repair all types inner screw thread of tappings and enables safe and highly resistant screw fitting. Particularly adapted for soft materials, Wire thread insert presents a high resistance to thermal, corrosive and mechanical strain. It is specially made of high intensity, high precision, smooth surface, cold roll and rhombic stainless steel wire, then it is formed to helical wire, it is a concentric object for inner and outer screw thread. Wire thread insert has been assembled to be a high precision inner screw thread according to the relative standard, its varied capability is much better than the inner screw thread which is directly formed by thread wimble. The tolerance scope of the well-assembled wire thread insert’s inner screw thread hold will lie on the making tolerance of its section form and the tolerance scope of its assembled bottom hole’s screw thread. The latter will mainly lie on the tapping precision of its formed bottom hole, it is usually formed 6H grade, when the precision is high, it will be the tolerance scope within 5H, 4H grade, the british uniform standard screw thread precision is 2B,3B. Wire thread insert users may choose the specialized thread wimble, the way of tapping (hand tapping, machine tapping) and the lubricating fashion etc according to their required tolerance scope, they will be assuring to meet esteemed your inspected precision and your use requirements. The technic of wire thread insert is the most efficient, fast, economic technic of the reinforced and repaired inner screw thread both domestic and overseas at present, because of its unexampled advantages in the screw thread’s connecting link, it has been widely used in the developed countries, though it is in the popularization period in domestic. Common wire thread insert: Common wire thread insert with the broken groove (GJB119.1A-2001 HB5513-96), it is a basic form of wire thread insert, and it is a most common type in its application. Common wire thread insert without the broken groove(GJB119.2A-2001 HB5514-96) For blind hole or deep hole, when the screw was screwed down, its end would not touch the installing handle of wire thread insert, its screw thread hole could be selected the length of wire thread insert will be longer than the screw nail itself. Tighten locked wire thread insert: Using one coil or several coils of wire thread insert, making them to be many-sided shape, then it is named as tighten locked wire thread insert. Tighten locked wire thread insert with the broken groove (GJB5109-2002 HB6200-89); Tighten locked wire thread insert without the broken groove (GJB5110-2002 HB6201-89) Blind hole wire thread insert: Characters: 1.assemble easily, installing tools are simple 2.The installed complete screw thread’s length is equal to the screw thread’s length before it is installed.3.Because it is without any installing handles, it settle and avoid all troubles of getting the installing handles from the hole. In the same time, it reduce the processing and working procedure.