Chinese wholesale Hex Head Screws - JIS zinc plated Self Tapping Screw wholesale – Tonghe

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We have our own product sales staff, style crew, technical group, QC staff and package staff. We now have strict high quality management procedures for each approach. Also, all of our workers are experienced in printing subject for Metal Frame Anchor Bolt, Mild Steel Bolt, Drop In Anchor Sizes, We fully welcome shoppers from all around the world to ascertain stable and mutually effective enterprise interactions, to have a dazzling long run jointly.
Chinese wholesale Hex Head Screws - JIS zinc plated Self Tapping Screw wholesale – Tonghe Detail:

Introduction

Self-tapping screws have a wide range of tip and thread patterns, and are available with almost any possible screw head design. Common features are the screw thread covering the whole length of the screw from tip to head and a pronounced thread hard enough for the intended substrate, often case-hardened.
For hard substrates such as metal or hard plastics, the self-tapping ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-tapping one can (within reasonable limits of substrate hardness and depth).
For softer substrates such as wood or soft plastics, the self-tapping ability can come simply from a tip that tapers to a gimlet point (in which no flute is needed). Like the tip of a nail or gimlet, such a point forms the hole by displacement of the surrounding material rather than any chip-forming drilling/cutting/evacuating action.
Not all self-tapping screws have a sharp tip. The type B tip is blunt and intended for use with a pilot hole, often in sheet materials. The lack of a sharp tip is helpful for packaging and handling and in some applications may be helpful for reducing the clearance necessary on the reverse of a fastened panel or for making more thread available on a given length screw
Self-tapping screws can be divided into two classes; those that displace material (especially plastic and thin metal sheets) without removing it are termed thread-forming self-tapping screws; self-tappers with sharp cutting surfaces that remove the material as they are inserted are termed self-cutting.
Thread-forming screws may have a non-circular plan view, such as the five-fold symmetry of the pentalobular or three-fold symmetry for Taptite screws.
Thread-cutting screws have one or more flutes machined into their threads, giving cutting edges.

packaging & delivery

Packaging Details:
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) As customers’ require.
Port:Tianjin, China
Lead Time:

in stock No stock
15 working Days To be negotiated

Product detail pictures:

Chinese wholesale Hex Head Screws - JIS zinc plated Self Tapping Screw wholesale – Tonghe detail pictures

Chinese wholesale Hex Head Screws - JIS zinc plated Self Tapping Screw wholesale – Tonghe detail pictures

Chinese wholesale Hex Head Screws - JIS zinc plated Self Tapping Screw wholesale – Tonghe detail pictures


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Innovation, excellent and reliability are the core values of our firm. These principles today more than ever form the basis of our success as an internationally active mid-size corporation for Chinese wholesale Hex Head Screws - JIS zinc plated Self Tapping Screw wholesale – Tonghe, The product will supply to all over the world, such as: Hanover, Southampton, Canada, We pay high attention to customer service, and cherish every customer. We have maintained a strong reputation in the industry for many years. We are honest and work on building a long-term relationship with our customers.
  • A nice supplier in this industry, after a detail and careful discussion, we reached a consensus agreement. Hope that we cooperate smoothly.
    5 Stars By Hellyngton Sato from Spain - 2018.12.22 12:52
    A good manufacturers, we have cooperated twice, good quality and good service attitude.
    5 Stars By Janet from Juventus - 2018.11.06 10:04

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