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Product Introduction

Ordinary bolts can be divided into three grades A, B and C according to the production accuracy. Grade A and B are refined bolts and Grade C is crude bolts.



  • Product Description

Cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with external threads) must be matched with a nut to fasten and connect two parts with through holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

Key words: bolt

A reasonable carrying system can effectively decompose the pressure of weight on the body, reduce the fatigue of the human body, and protect the body from harm. The carrying system is generally composed of shoulder straps, waist belts and chest straps.

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