High Strength External Hexagon Combination Screw
Introduction to High strength external hexagon combination screw for buildings and workshops: High strength external hexagon combination bolt for steel structure is mainly used in railway and highway bridge, boiler steel structure, industrial workshop, high-rise [...]
High Strength Steel Structure Bolts Replace High Strength Bolts
What problems should be paid attention to when high strength steel structure bolts replace high strength bolts? 1) When the hole position is not correct, forced alignment will damage the thread of high strength bolt, [...]
Advantage of High Strength Dacromet Bolt
The advantage of high strength Dacromet bolt is due to the development of Dacromet, which has become a necessary technical requirement in some workplaces. The main reasons are as follows: 1. Electroplating not only pollutes [...]
Thread Processing Technology of High Strength Bolt
The thread of high strength bolt is realized by receiving hot working method. The thread material within the diameter range is processed through the process of thread rolling plate, and the screw thread of high [...]
Advantages of Hot-dip Galvanized Bolt
Hot-dip galvanized bolt has many advantages, which are summarized as follows: 1. The cost of hot-dip galvanized bolts treatment is low: the cost of hot-dip galvanizing antirust is lower than that of other coatings; 2. [...]
Materials of High Strength Hexagon Bolts
Which materials of High strength hexagon bolts? they are made of three kinds of materials. The details are as follows: Carbon steel: Generally, hexagonal bolt manufacturers distinguish low carbon steel, medium carbon steel, high carbon [...]
Processing of Bolt Head and Thread
How is the bolt head and thread processed? The head of bolt is formed by cold upsetting plastic processing. Compared with the cutting process, the metal fiber (metal wire) is continuous along the product shape [...]
How to Distinguish High Strength National Standard Bolt
The identification method of high strength national standard bolt mainly depends on five aspects: Look at the mark. Generally, the packing box of bolts has identification. It can be divided into 8.8, 10.9 and 12.9 [...]
Heat Treatment of American Hexagon Socket Bolts
There are 10 kinds of heat treatment methods for American hexagon socket bolts 1. Normalizing: the steel or steel parts are heated to the appropriate temperature above the critical point AC3 or ACM for a [...]
Requirements for Heat Treatment High Strength Fasteners
Heat treatment high strength fasteners should be quenched and tempered according to the technical requirements. The purpose of heat treatment quenching and tempering is to improve the comprehensive mechanical properties of fasteners, so as to [...]