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self-drilling screw/self-drilling screw/dovetail screw

Self-Drilling Screw have a drill bit point that allows them to cut their own hole as they are driven into material. They are commonly used in metal and wood and eliminate the need for a pre-drilled hole, making them very efficient for certain applications.
Self-tapping screws do require a pre-drilled hole. They tap their own thread as they are driven into the material, making them useful for creating a strong hold in a variety of materials, including metal, plastic, and wood.

self-drilling screw/self-drilling screw/dovetail screw

This product can also be called a self-drilling screw, self-drilling screw, or dovetail screw. The implementation of the national standard is GB/T 15856.1-2002, German standard DIN7504N-1995, and Japanese standard JIS B 1124-2003. The screw has a tail tip like a twist drill, which can drill out of the center during assembly. The hole is then used to realize the self-tapping effect in the hole on the carrier by means of the adjacent threaded part.

Specification

 2.2-14

Length

 3-180mm

Material

 carbon steel

Head type

 hexagonal flange, countersunk head

Thread type

 self-tapping and self-drilling

Tensile strength

 450Mpa

Surface hardness

 ≥530HV 

Core hardness

 320-400HV

Surface treatment

 color zinc, environmentally friendly blue and white zinc

Support non-standard customization

PTODUCT DESCRIPTION
Ningbo Risheng Fastener Co., Ltd.
About
Ningbo Risheng Fastener Co., Ltd.
Ningbo Risheng Fastener Co., Ltd.

As China self-drilling screw/self-drilling screw/dovetail screw Suppliers and Wholesale self-drilling screw/self-drilling screw/dovetail screw Manufacturers, Ningbo Risheng Fastener Co., Ltd. is a veteran fastener manufacturer founded in 1984, which can produce various types of self-tapping screws, machine screws, combination screws, triangle screws, stainless steel screws, hexagonal screws, anti-theft screws, and non-standard fasteners according to GB, JS ANSI, DIN, ISO, and other standards. in line with European ROHS environmental requirements.

At present, the company has nearly 22,000 square meters of R&D and production base, including a CNC machining center, mesh belt quenching furnace/tempering furnace high-speed cold block machine, combination screw washer, high-speed precision rolling machine, automatic tail collider, high-precision forming machine, four-mode four-power position machine and other production equipment. And projectors, torsion machine, tension machine, salt spray testing machine, screw screening machine, metallographic inlaying machine, Rockwell hardness machine, and other testing equipment.

Certificate Of Honor
  • Certification
  • Technology Innovation Award
  • Certification
  • Independent innovation and outstanding new products in the fastener industry 2019
  • Independent innovation and outstanding new products in the fastener industry 2018
  • Safety production standardization level three enterprise
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