ASTM International Standard

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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

Hardness Grade of Hexagon Socket Bolts

What are the hardness grade of hexagon socket bolts? The cylindrical head of the hexagon socket bolt is in the shape of hexagon socket. There are many kinds of hardness grades. Users can choose according to their different needs to ensure the tightening effect of the bolt. The hardness grade of hexagon socket bolt will [...]

By |April 9th, 2021|A325, A490, ASTM International Standard, Bolt Types, Hex Bolts, Hexagon Bolt, High Strength Bolts, Socket Head Bolts|Comments Off on Hardness Grade of Hexagon Socket Bolts

How to Deal With the After-sale Problems of High Strength Hexagon Bolt?

How to deal with the after-sale problems of high strength hexagon bolt? High strength hexagon bolt is made of high-strength steel. It is generally used in track, bridge and high-pressure equipment. In order to ensure its firmness, sometimes it needs to be prestressed before use. However, if the product has quality problems during use, it [...]

By |March 28th, 2021|A193, A325, ASTM International Standard, Bolt Types, F3125, Heavy Hex Bolts, High Strength Bolts, High Strength Structure Bolts, Stainless Steel Bolts|Comments Off on How to Deal With the After-sale Problems of High Strength Hexagon Bolt?

How to Reduce the Rust of High Strength Hot Dip Galvanized Bolts

How to reduce the rust of high strength hot dip galvanized bolts? What measures can be taken to reduce the rust probability of high strength hot dip galvanized bolts? High strength hot-dip galvanized bolts in the production of processing surface, hot-dip galvanizing process will be carried out on the surface, which can enhance the anti [...]

The Difference Between Hexagon Bolt and Screw

The difference between hexagon bolt and screw Hexagon bolts and screws are commonly used fasteners, which are very common in our life. Their main function is to connect and fix them. However, many people can't tell the difference between them, or even confuse them. Today we will explain the differences between them. Differences between hexagon [...]

Anti Corrosion Treatment Method of Hexagon Socket Bolts Surface

Anti corrosion treatment method of hexagon socket bolts surface In the production of hexagon socket bolts, one of the most important links is to carry out anti-corrosion treatment on the surface. You may ask "how to carry out anti-corrosion treatment?" in fact, different corrosion conditions lead to different anti-corrosion treatment methods. Today, we will briefly [...]

By |March 19th, 2021|A490, A563, ASTM International Standard, Bolt Types, F3125, High Strength Bolts, High Tensile Bolts, Plow Bolts, Ring Bolts, Socket Head Bolts, Square Head Bolt|Comments Off on Anti Corrosion Treatment Method of Hexagon Socket Bolts Surface

How to Process Bolt Head and Thread

How to Process Bolt Head and Thread? The forming of bolt head adopts cold heading plastic processing. Compared with cutting, the metal fiber (metal wire) is continuous along the shape of the product, and there is no cutting in the middle. Therefore, the strength of the product is improved, especially the mechanical property is excellent. [...]

A325M Heavy Hex Bolt Specification

A325M heavy hex bolt specification: Heavy hex bolts: Standard: A325m Grade: 4.8/5.8/6.8/8.8/10.9/12.9; grade 2 / 5 / 8.0 Specification: m6-m24; 1 / 4inch-1inch Length: 10 mm-270 mm; 1 / 2 inch-10 inches Surface treatment: natural color, blackening, galvanizing, hot galvanizing, Dacromet Packing: 25kg per carton, in bulk, 36 cartons per pallet. Or according to customer [...]

Advantages of High Strength Galvanized Bolt

Advantages of high strength galvanized bolt High strength galvanized bolt is galvanized, so what are its advantages? Hot dip galvanizing is also used to protect the surface of screws, bolts and nuts from corrosion. Hot dip galvanized screws have better corrosion resistance than electro galvanized screws. However, high cost and high strength structural bolts are [...]

By |March 2nd, 2021|A193, A307, A325, Anchor Bolts, ASTM International Standard, Bolt Types, Bracket Bolt, Flange Head Bolts, Heavy Hex Bolts, Hexagon Bolt, High Strength Bolts, Socket Head Bolts, Structural Bolts|Comments Off on Advantages of High Strength Galvanized Bolt

Heat Treated High Strength Fastener

Heat treated high strength fastener should be quenched and tempered according to the technical requirements. The purpose of heat treatment and tempering is to improve the comprehensive mechanical properties of fasteners to meet the specified tensile strength and yield ratio of products. Heat treatment process has a vital impact on high-strength fasteners, especially its internal [...]

By |February 3rd, 2021|A563, ASTM International Standard, Bolt Types, F3125, Fastener, Fasteners Knowledge, High Strength Structure Bolts, Square Head Bolt, Stainless Steel Bolts, Structural Bolts|Comments Off on Heat Treated High Strength Fastener

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
  • High Tensile Bolt 10.9

High Tensile Bolt 10.9

High Tensile Bolt 10.9 High Tensile 10.9 Half Threaded Bolts, ASTM F568 Grade 10.9 Bolts, High Tensile 10.9 Metric Bolts, Grade 10.9 Hex Bolts Supplier, Class 10.9 Full Threaded Bolts Manufacturer, Gr 10.9 High Tensile Fasteners, High Tensile Bolt 10.9 in China High Tensile 10.9 Elevator Bolt, High Tensile 10.9 Anchor Bolt, Grade 10.9 High [...]

  • High-Strength Grade 8.8, 10.9, 12.9 Hexagon Bolts

High-Strength Grade 8.8, 10.9, 12.9 Hexagon Bolts

High-Strength Grade 8.8, 10.9, 12.9 Hexagon Bolts Steel Structral bolts are a kind of high strength bolts and also a standard part. Fastening performance is better, for steel structure, engineering, so that the role of fastening. General steel structure, the requirements of the steel bolts are 8.8 or more, there are 10.9, 12.9, all of [...]

  • High Tensile Bolt 8.8

High Tensile Bolt 8.8

High Tensile Bolt 8.8 ASTM F568 Grade 8.8 Bolts, High Tensile 8.8 Metric Bolts, Grade 8.8 Hex Bolts Supplier, High Tensile 8.8 Half Threaded Bolts, Class 8.8 Full Threaded Bolts Manufacturer, Gr 8.8 High Tensile Fasteners, High Tensile Bolt 8.8 in China High Tensile 8.8 Anchor Bolt, High Tensile 8.8 Elevator Bolt, Grade 8.8 High [...]

Materials for High Strength Hexagon Bolts

There are three kinds of materials for high strength hexagon bolts, as follows: (1) carbon steel. Generally, hexagonal bolt manufacturers distinguish low carbon steel, medium carbon steel, high carbon steel and alloy steel according to carbon content in carbon steel. 1. Low carbon steel C% ≤ 0.25% is usually called A3 steel in China. It [...]

How to Avoid Stainless Steel Hexagon Bolt Rusting?

What are the causes of stainless steel hexagon bolt rusting? How to avoid it? 1. The surface of stainless steel hexagon bolt adheres organic juice (such as melon and vegetable, noodle soup, phlegm, etc.) and forms organic acid under the condition of water and oxygen. The corrosion of organic acid on metal surface will rust [...]

By |October 30th, 2020|A193, A307, A325, ASTM International Standard, Bolt Types, Hex Bolts, Stainless Steel Bolts|Comments Off on How to Avoid Stainless Steel Hexagon Bolt Rusting?

Removal of Worn Inner Hexagon Bolts

There are many parts of machinery and equipment that use inner hexagon bolts to fix parts. However, because they are often disassembled, the inner hexagon of the bolts is easy to grind round, and it is difficult to remove them with the hexagon wrench. This paper introduces two methods of hexagonal nut hexagon bolt parts, [...]

By |October 28th, 2020|A563, ASTM International Standard, Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, Socket Head Bolts|Comments Off on Removal of Worn Inner Hexagon Bolts

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 civil building, tower and mast structure, hoisting machinery and steel structure where friction type high-strength bolt combination screw is required. [...]

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 the air, land and water, but also does great harm to operators. The state has repeatedly declared that it is [...]

By |September 18th, 2020|A563, ASTM International Standard, Bolt Types, F568M, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, Structural Bolts|Comments Off on Advantage of High Strength Dacromet Bolt

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 strength bolts is formed by the pressure of screw plate. If the plastic flow line of the thread part is [...]

By |September 8th, 2020|A325, A490, ASTM International Standard, Bolt Types, High Strength Bolts, High Strength Structure Bolts|Comments Off on Thread Processing Technology of High Strength Bolt