Stainless Steel Threaded Inserts ROHS Extend The Service Life Of The Base

Information

Stainless steel wire threaded sleeves are also called threaded sleeves, threaded sheaths, etc., and are used for various low-strength metal and non-metal materials.
Wire thread insert, also known as thread sheath, is a new type of internally threaded fasteners. It is a spring-like spiral coil precisely processed from high-strength, high-precision, and smooth-surfaced cold-rolled diamond-shaped stainless steel wire. , It is a high-precision concentric body with internal and external threads. The wire thread insert (thread sheath) can form a high-precision internal thread that meets the international standard after being installed in the product, and its performance is better than that of the internal thread formed by tapping directly on the workpiece.

Structure

Wire thread insert is rhombic cross section with a high hardness made of corrosion resistant steel wire is wound, a spring-like member concentric with and external thread, which is screwed into the outer mounting dedicated wire thread parts on the thread groove, the inner thread is connected The cross-sectional shape of the standard internal thread used for fastening parts is a combination of two internal and external threads. Wire thread inserts are divided into two types: ordinary type and locking type, each with or without breaking grooves and with breaking grooves.
The locking type is a polygonal locking ring with one or more turns added to the ordinary threaded sleeve. The elasticity of the locking ring has a braking effect on the screw. The locking wire thread insert has all the advantages of the ordinary wire thread insert, does not affect the installation of the screw, and only increases the appropriate torque during installation.

Specification

Installation tool

Special tools for wire thread inserts are required to install wire thread inserts, which mainly include special taps for wire thread inserts, wire thread insert installation wrenches, punches, unsleeve devices, and wire thread inserts internal thread bottom hole plug gauges. The taps are used for processing. The installation threaded bottom hole of the wire thread insert, the installation wrench is used for the installation of the wire thread thread insert, the punch is used for the punching of the mounting shank, the sleeve remover is used for the disassembly of the threaded sleeve, and the bottom hole plug gauge is used for the inspection of the bottom hole of the installation .

1. Bottom hole tap: used for the processing of the internal thread of the wire thread insert. Since the external thread of the wire thread insert is a non-standard thread, this type of tap is different in size from the ordinary M tap.

2. Installation wrench: used to install the wire thread insert in the threaded bottom hole. The basic principle is to make the wire thread insert pass through a section of the guide thread to force the outer diameter of the wire thread insert to shrink so that it can be smoothly installed in the bottom hole. And automatic type.

3. Breaker: The purpose of the breaker is mainly to break the installation handle of the wire threaded sleeve, especially for the through hole, the installation handle must be broken.

4. Sleeve remover: used to take out the threaded screw sleeve installed in the threaded hole of the base. For the screw sleeve that needs to be replaced after long-term use, and when it needs to be taken out due to improper installation or thread tripping during installation, etc. use.

5. Thread plug gauge: used to detect the internal thread bottom hole of the wire thread insert. After the wire thread insert is installed, the accuracy of the internal thread formed depends on the profile manufacturing tolerance of the wire thread insert and the internal thread bottom hole of the wire thread insert. tolerance.