What is a tapping Inserts for Soft Metal

What is a tapping Inserts for Soft Metal?

Tapping Inserts for Soft Metal (or self-tapping bushings) is a fastener with internal and external bolts and cutting holes or cutting grooves, which is also a new type of fastener to strengthen the lightness of the threads. Self-tapping bushings embedded in plastics, aluminum alloys, cast iron, copper, and other soft materials, can form a high-strength internal threaded hole; self-tapping bushings can also be bad interior thread repair, self-tapping bushings do not have to pre-tap the threads can be directly fastened screwed into the parent material reserved for specific holes, for the collapse of the teeth of the parent threads can be used and the same as the original screws.

Tapping Inserts for Soft Metal Applications

Tapping Inserts for Soft Metal are used for light alloys (aluminum, magnesium, zinc, and its alloys), cast iron, brass bronze, thermoset plastic and laminates, and wood.

Mainly used in automobile engines, transmission components and other components such as mirrors, heat sinks, shock absorbers, etc.; flange joints of plant equipment, construction equipment, fuel equipment, etc.; household appliances and office equipment; capacitors, high-current equipment, radio frequency, and telecommunications systems, dental equipment. In the military, it is mainly used in tanks, fighter jets, ships, etc.

Characteristics of the use of tapping Inserts for Soft Metal

● Provides female solid threads on a soft substrate to accommodate multiple repairs and disassembly.

● Can effectively repair damaged internal threads.

● Self-tapping sleeves are used after die casting, injection molding, or other manufacturing processes, thus simplifying the product structure and increasing production.

● Tapping Inserts for Soft Metal can withstand high loads, so smaller inserts can be used, resulting in a more compact product design.

Types of Tapping Inserts for Soft Metal

1, 302, or 302H series: 302 products in all the most widely used steel wire nut products; its two grooves play a role in cutting and a little inward locking force. 302H-type 302-type flange, you can significantly improve the pulling force and torque on the flange.

2, 303 series: The 303 series of products is 302 series of thin-walled versions, mainly used in some that can not have a thick wall of plastic or light alloy. In exceptional cases, lubricating oil can be considered when installing.

3、307/308 or 307H/308H series: 307 and 308 series products are used for hard-to-cut materials; it has a larger wall thickness and shallower but sharper external threads, and the Tapping Inserts for Soft Metal use three holes as the cutting edge. The difference between 307 and 308 lies in the length of the bushing. 307H/308H is the product of the flange added.

4, 347/348 series: The 347/348 series of products is a thin-walled version of the 307/308 series, mainly used in some plastic or light alloys without thick bik. In exceptional circumstances, the installation of lubricants can be considered.

5, 317/318 series: Products from the 317/318 series are specially designed to increase torsion and vibration resistance. Their function is realized by inserting a pin by the DIN1437 standard.

6, 337/338 series: 337/338 series products are specially designed to be used in which the cutting is not allowed to fall into the hole, so the three cutting holes are blind holes designed. For the flanged designation 337/338H. If the bottom end is closed, use codes 357/358.