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self threading bolts

Details: self threading bolts Our company is an factory with about many years experience in China, and our monthly output is up to 10cotainers to all ove...

Shanghai Sunray Co., Ltd.

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China (Mainland)China (Mainland)

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Color plated self threading bolts

Details: self threading bolts 1. Standard:DIN, ANSI, BSW, JSB ans ISO standard or non-standard as request&design. 2. Material:Carbon steel, Alloy stee...

Shenzhen Jingbang Hardware Electronic Co., Ltd.

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China (Mainland)China (Mainland)

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self threading bolts

Details: self threading bolts 1. Head type: pan head, hex head,slotted pan head, cross recessed pan head, cross recessed countersunk head,……...

Guangzhou Genuine Hardware Products Firm

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Self Threading Bolts

Details: Feature: (1) Self Threading Bolts (2) Anti-corrosion(3) Environmental protection(4) Heavy-duty(5) Tolerance: DIN 2768-m 1. Material: ASTM 1020 / A...

Ningbo Sylue Machine Co., Ltd.

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self threading bolts

Model / Specifications:M2-M36

Brand Name:JB

Details: self threading bolts 1)MaterialStainless steel 18-8An alloy of steel with high corrosion resistance.Zinc plated grade 2 steelA low carbon steel fo...

Shenzhen jingbang hardware Electronic Co.,ltd.

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China (Mainland)China (Mainland)

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stainless steel self threading bolts

Details: Product Name:stainless steel self threading bolts Certificate: ISO9001:2008,TS16949 Material:316, 316L Specification:M6-M33 Standard: DIN,...

Nanjing Flybear Hardware Product Co., Ltd.

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Stainless Steel 316 screws Phillips Raised Countersunk Oval Head self threading bolts DIN7983

Details: Product Specification:Product Name:Phillips Raised Countersunk Oval Head self threading bolts DIN7983Standard:DIN7983Other standards:GB,DIN,JISB,I...

Nanjing Newynn Fastener Co., Ltd.

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High quality self threading bolts

Model / Specifications:Screw

Brand Name:JB

Details: High quality self threading bolts1.Complete size ;Variety of materials:Carbon steel, Stainless steel,copper; Fine surface trearment: Plain, zinc p...

Shenzhen Jingbang Hardware Electronic Co., Ltd.

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China (Mainland)China (Mainland)

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self threading bolts

Details: Quick Details Place of Origin: China(Mainland) Model Number: self threading bolt Size: M4-M24(as your requested)length:25-200mm (as your r...

Jiaxing Yaoliang Import And Export Co., Ltd.

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China (Mainland)China (Mainland)

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Truss Phillips Self Drilling Screw

Model / Specifications:different specifications

Brand Name:youprefer

Details: 1.Different specifications of self-threading bolts 2.Material:Carbon steel/stainless steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG

Shanghai You Prefer International Trade Co., Ltd.

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China (Mainland)China (Mainland)

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Countersunk Phillips Self Drilling Screw

Model / Specifications:different specifications

Brand Name:youprefer

Details: 1.Different specifications of self-threading bolts 2.Material:Carbon steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG

Shanghai You Prefer International Trade Co., Ltd.

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China (Mainland)China (Mainland)

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Self Drilling Screw Pan Phillips

Model / Specifications:different specifications

Brand Name:youprefer

Details: 1.Different specifications of self-threading bolts 2.Material:Carbon steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG

Shanghai You Prefer International Trade Co., Ltd.

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China (Mainland)China (Mainland)

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Self Drilling Screw Hexagon Head

Model / Specifications:different specifications

Brand Name:youprefer

Details: 1.Different specifications of self-threading bolts 2.Material:Carbon steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG

Shanghai You Prefer International Trade Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Self Drilling Screw with Hexagon Head

Model / Specifications:12# (5.5-24) 14# (6.3-14)

Brand Name:youprefer

Details: 1.Different specifications of self-threading bolts 2.Material:Carbon steel;Stainless steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG

Shanghai You Prefer International Trade Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Related Products
  • High quality self threading bolts High quality self threading bolts1.Complete size ;Variety of materials:Carbon steel, Stainless steel,copper; Fine surface trearment: Plain, zinc plated etc.2.Variety of standards:ISO,GB,DIN,JIS,AN...
  • Stainless Steel 316 screws Phillips Raised Countersunk Oval Head self threading bolts DIN7983 Product Specification:Product Name:Phillips Raised Countersunk Oval Head self threading bolts DIN7983Standard:DIN7983Other standards:GB,DIN,JISB,ISO,ANSI/ASME,Non-standardsSize:ST2.2- ST6.3Materia...
  • Color plated self threading bolts self threading bolts 1. Standard:DIN, ANSI, BSW, JSB ans ISO standard or non-standard as request&design. 2. Material:Carbon steel, Alloy steel, stainless steel or according require 3. Grade: ...
  • self threading bolts self threading bolts Our company is an factory with about many years experience in China, and our monthly output is up to 10cotainers to all over the world. Style: DIN931 / DIN933 Material : ...
  • self threading bolts Quick Details Place of Origin: China(Mainland) Model Number: self threading bolt Size: M4-M24(as your requested)length:25-200mm (as your requested) Finish: Plain, zinc plated, galvanized,...
  • self threading bolts self threading bolts 1)MaterialStainless steel 18-8An alloy of steel with high corrosion resistance.Zinc plated grade 2 steelA low carbon steel for general use. Zinc plated for moderate corrosion ...
  • Self Drilling Screw Hexagon Head 1.Different specifications of self-threading bolts 2.Material:Carbon steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG
  • Self Drilling Screw Pan Phillips 1.Different specifications of self-threading bolts 2.Material:Carbon steel 3.Model:5.5*25 / 5.5*38 / 5.5*45...Place of Origin: CN;SHG

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Product Summary

A self threading bolt is to replace bolts when the bolt holes have damaged or stripped threads. The self-tapping bolt has a self-tapping tapered end which is small enough to fit in the bolt hole into which it is inserted. It has two slots cut into the end which provides both channels for disposal of chips and to define the cutting edge of the self-tapping portion. The cutting edge of the self-tapping portion is decreased in radius behind the cutting edge to provide a relief so that the bolt can be turned with less torque into the damaged bolt hole.

This invention relates to self threading bolts that are capable of cutting a damaged screw thread during installation in a threaded opening. Stripped out bolt holes in machinery can be a major expense primarily because of the equipment in which the bolt hole is located may be unusable until it is repaired and the down time of the equipment until such repair takes place can oftentimes give rise to significant economic losses. Basically, the bolt is a self-tapping fastener whose circular shank has a bolt head or other device at one end to which a turning torque can be applied as it is screwed into the damaged bolt hole. At the other end, is a self-tapping section which is tapered so that the smallest end diameter is small enough to be inserted into the damaged hole. The self-tapping portion is relatively small in length and preferably is approximately 5 threads long based on the U.S. National Coarse Thread Standard or an equivalent if other threads are used. This is sufficient to do the tapping but at the same time does not subtract substantially from the useable bolt length. The tapered self-tapping portion merges into the screw threads which extend up the length of the shank to the desired height (or threaded portion length).

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