Lag Screw Bolts

//Lag Screw Bolts

Lag Screw Bolts

Anti Rust Treatment Method of Dacromet Hexagon Bolt

Anti rust treatment method of Dacromet hexagon bolt: 1. Rust removal: The derusting process in Dacromet bolt treatment is different from the general pre-treatment method of coating, and acid pickling is used for derusting. This is because most of the parts treated by Dacromet are high-strength bolts, nuts and high-strength stamping parts, which will produce [...]

By |April 17th, 2021|A325, A490, ASTM International Standard, Bolt Types, Heavy Hex Bolts, Hex Head Screws, Hexagon Bolt, Lag Screw Bolts, Screws, Structural Bolts|Comments Off on Anti Rust Treatment Method of Dacromet Hexagon Bolt

Application of Super Long Bolt

Application of super long bolt With the development of large-scale and large-scale infrastructure, more and more large-diameter, overweight and super long bolts are used. In order to make sure that the bolt is used quickly and accurately, we need to pay attention to several points. 1. The operation platform must be fixed reliably without obvious [...]

By |March 30th, 2021|Bolt Types, Construction Bolts & Nuts, Expansion Screw, Fastener, High Tensile Bolts, Lag Screw Bolts, Plow Bolts, Square Head Bolt|Comments Off on Application of Super Long Bolt

High Strength Dacromet Hex Bolts

High Strength Dacromet Hex Bolts are processed by Dacromet, so what are the advantages? 1. Excellent corrosion resistance. In the salt spray test, the UN etched zinc coating will corrode 1 μ m ~ 3 μ m thick rainbow colored film in 10 hours and wear out in 200 hours. The corrosion resistance of Dacromet [...]

By |January 13th, 2021|A325, A490, ASTM International Standard, Bolt Types, Bracket Bolt, Elevator Bolts, Heavy Hex Bolts, Hex Bolts, Lag Screw Bolts, Plow Bolts, Socket Head Bolts, Square Head Bolt|Comments Off on High Strength Dacromet Hex Bolts

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 without cutting off in the middle. Therefore, the strength of the product is improved, especially the mechanical properties are excellent. [...]

By |August 25th, 2020|Anchor Bolts, Bolt Types, Bracket Bolt, Carriage Bolts, Countersunk Bolt, DIN International Standard, Expansion Bolt, Lag Screw Bolts, Plow Bolts, Ring Bolts|Comments Off on Processing of Bolt Head and Thread

Characteristics of Steel Structure Bolts

Steel structure bolts are high strength bolts, and also kinds of standard parts. Good fastening performance, used in steel structure, engineering, so that the tightening effect. General steel structure, the requirements of steel structure bolt are 8.8 grade or above, there are 10.9 grade, 12.9 grade, all of them are high strength steel structure bolts, [...]

By |July 5th, 2020|Bolt Types, Carriage Bolts, Lag Screw Bolts, Stainless Steel Bolts, Structural Bolts|Comments Off on Characteristics of Steel Structure Bolts

Quality Inspection of Screws

There are two types of screw surface inspections, one is the inspection before the screw is produced, and the other is the inspection after the screw plating. Inspection method after screw treatment: Appearance quality requirements: The inspection of the appearance of the screws is carried out in terms of appearance, plating and other aspects. Inspection [...]

By |May 9th, 2019|Lag Screw Bolts, Screws|Comments Off on Quality Inspection of Screws
  • High Strength Bolts

Method of High Strength Bolts Fastening

The degree of tightening of ordinary bolts is not clearly defined, and the force applied during locking is generally as long as the connection is tight. However, since the tension is not applied when the lock is applied, the nut is prone to loosening. To prevent loosening, the inner nut can be pressed by the [...]

By |April 14th, 2019|Heavy Hex Bolts, Hex Bolts, Lag Screw Bolts|Comments Off on Method of High Strength Bolts Fastening
  • Expansion Screw

Expansion Screw Installation Steps

Install expansion screw prepare tools: hand drill, hammer, cross screwdriver, pencil. After preparing the tool, select an alloy drill bit of the same diameter as the expansion screw of the expansion screw, install it on the drill and then punch the wall. The depth of the hole is preferably the same as the length of [...]

By |April 11th, 2019|Expansion Screw, Lag Screw Bolts|Comments Off on Expansion Screw Installation Steps