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Chuanghe Fastener Co., Ltd.

  • Address:No. 2 buildings, Lizhou industrial Park,Shangshanqi, Zhushan District, Dongcheng Town, Dongguan City, China.
  • TEL:+0086-769-27382539
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  • Contact:David Dai
  • E-mail:info@dgchuanghe.com
  • Relevant search:bolt, screw, nut, rivet, washer, CNC turned parts Plastic Bakelite Handles

Company News
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A wide variety of self-tapping screws distinctive features

Views: 26Date: 2013-09-12Typeface: Big Small
Self-tapping screws There are many types, but its characteristics are similar to everyone here summed up what about the following aspects:

1, the product must undergo heat treatment. Carbon steel self-tapping screws must be carburized stainless steel self-tapping screws must go through solid solution hardening. So that the self-tapping screws meet the standard requirements of the mechanical properties and performance.

2, the use of cold heading production process. Recommend the use of high-speed and high-speed cold heading machine thread rolling machines or high-speed planetary rolling machine production to ensure product quality. Thus produced tapping screw head forming a good, high quality thread.

3, are generally used carburizing steel (99% of total product). Can also be made ​​of stainless steel or non-ferrous metals.

4, the product surface treatment is required for surface protection, typically plating. Some products subject to phosphate surface treatment (phosphate). Such as: self-tapping screws wallboard mostly phosphate.

5, surface hardness, and rivets as its core toughness. Or "soft inside just outside." This is a self-tapping screw performance requirements is a major feature. As low surface hardness not screw into the matrix; such as core toughness is poor, a twist on the break, you can not use. Therefore, the "soft inside just outside" is a self-tapping screw to meet the performance requirements.