High Strength Bolts

//High Strength Bolts

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. [...]

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, resulting in the change of torque coefficient and pre tension. 2) It is possible that the internal stress in the [...]

By |October 8th, 2020|Bolt Types, High Strength Bolts, High Strength Structure Bolts, Stainless Steel Bolts, Structural Bolts|Comments Off on High Strength Steel Structure Bolts Replace High Strength Bolts

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

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. The hot-dip galvanized bolt is durable after hot-dip galvanizing: in the suburban environment, the standard hot-dip galvanized anti-corrosion thickness can [...]

By |August 29th, 2020|Bolt Types, Heavy Hex Bolts, High Strength Bolts, High Strength Structure Bolts|Comments Off on Advantages of Hot-dip Galvanized Bolt

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 steel and alloy steel according to carbon content in carbon steel. 1. Low carbon steel C% ≤ 0.25% is usually [...]

By |August 27th, 2020|Bolt Types, Construction Bolts & Nuts, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts, Structural Bolts|Comments Off on Materials of High Strength Hexagon Bolts

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 grades. In general, there is no grade mark on the hexagonal plane of hexagon bolt, which is a common grade, [...]

By |August 23rd, 2020|Bolt Types, Carriage Bolts, Construction Bolts & Nuts, Heavy Hex Bolts, High Strength Bolts, High Strength Structure Bolts, Structural Bolts|Comments Off on How to Distinguish High Strength National Standard Bolt

Advantages of High Strength Galvanized Bolts

High strength galvanized bolts are galvanized, so what are the advantages? Hot dip galvanizing is also used for the surface anti-corrosion of screws, bolts and nuts. The hot-dip galvanized screws have better corrosion resistance than the galvanized screws, but the cost is higher. The structural bolts with high strength are not suitable for hot-dip galvanizing. [...]

By |August 15th, 2020|Bolt Types, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts|Comments Off on Advantages of High Strength Galvanized Bolts

Application of High Strength Hexagon Bolt

Application of High Strength Hexagon Bolt is very widely, High strength hexagon bolts are usually used to connect thin metal plates. When connecting, the threaded bottom hole of the connected part is made first, and then the hexagonal combination screw is screwed into the threaded bottom hole of the connected part. Due to the high [...]

By |August 5th, 2020|Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts|Comments Off on Application of High Strength Hexagon Bolt

Dacromet Process of Dacromet Hexagon Bolts

Dacromet is an advanced and complete metal surface treatment technology of dacromet hexagon bolts. It has the advantages and characteristics that other surface treatment can't match. 1. Excellent corrosion resistance. In salt spray test, 1 μ m ~ 3 μ m thick rainbow colored film will be corroded in 10 hours and corroded in 200 [...]

By |August 3rd, 2020|Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts|Comments Off on Dacromet Process of Dacromet Hexagon Bolts

How to Distinguish High Strength Bolts

In order to distinguish high strength bolts, the following three methods are mainly used: With naked eyes, high strength bolts can be divided into high-strength external hexagon bolts and high-strength inner hexagon bolts. These high strength bolts are generally marked with strength grade and hardness grade. Generally, the screw head is marked with bolt grade. [...]

By |July 31st, 2020|Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts|Comments Off on How to Distinguish High Strength Bolts

Process of Stainless Steel Hexagon Bolt

The technological process of stainless steel hexagon bolt is as follows: 1. Normalizing: heat the stainless steel hexagon bolt to the appropriate temperature above the critical point AC3 or ACM, keep it for a certain time, and then cool it in the air to obtain pearlite structure. 2. Annealing: heating the hypoeutectoid stainless steel hexagon [...]

By |July 29th, 2020|Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, Stainless Steel Bolts|Comments Off on Process of Stainless Steel Hexagon Bolt

Production Process of High Strength Hexagon Bolt

The following content is about the production process of high strength hexagon bolt. The production process of high strength hexagon bolt generally starts with the purchase of bolt wires. If you need to make high-strength hexagon bolts, you should first purchase the same specifications and models of bolts and wires. It is also necessary to [...]

By |July 26th, 2020|Bolt Types, Hex Bolts, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts|Comments Off on Production Process of High Strength Hexagon Bolt

How to Identify High Strength Bolts

Identify High Strength Bolts is also skilled, generally in this industry for a long time, you will learn the skill, the following is for everyone to sort out some of the knowledge. 1. Identification: there are obvious strength grade marks on the package of bolts manufactured by regular manufacturers. Such as 8.8, 10.9 and 12.9. [...]

By |July 24th, 2020|Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts, Stainless Steel Bolts|Comments Off on How to Identify High Strength Bolts

Construction of High Strength Bolts

The following problems should be paid attention to in the construction of high strength bolts: (1) Surface rust, oil stain, burr and weld bead on bolt hole wall shall be cleaned. (2) After treatment, the contact friction surface shall meet the requirements of anti scratch coefficient. The high-strength bolts used shall be matched with nuts [...]

By |July 23rd, 2020|A325, A490, ASTM International Standard, Bolt Types, Heavy Hex Bolts, High Strength Bolts, High Strength Structure Bolts|Comments Off on Construction of High Strength Bolts

Benefits of High Strength Hexagon Bolts

High strength hexagon bolts bring many benefits to various industries, such as Improve the stress condition of the structure. The force of friction type high-strength bolt connection is transmitted by the friction force on the steel plate surface. The large area of transmission force and the phenomenon of stress concentration are improved, and the fatigue [...]

By |July 20th, 2020|Bolt Types, Heavy Hex Bolts, Hex Bolts, Hexagon Bolt, High Strength Bolts, High Strength Structure Bolts, Socket Head Bolts|Comments Off on Benefits of High Strength Hexagon Bolts

Stainless Steel Hexagon Bolts Process Introduction

The manufacturing process of stainless steel hexagon bolts is as follows: Normalizing: the screw is heated to the appropriate temperature above the critical point AC3 or ACM for a certain time and then cooled in air to obtain pearlite structure. Annealing: the hypoeutectoid screw is heated to 20-40 ℃ above AC3 and cooled slowly in [...]

By |July 14th, 2020|A193, ASTM International Standard, Bolt Types, Bolts & Nuts Grade, Grade 8.8, Heavy Hex Bolts, Hex Bolts, High Strength Bolts, Stainless Steel Bolts|Comments Off on Stainless Steel Hexagon Bolts Process Introduction

High Strength Wind Power Bolt

As one of the most widely used connection methods in wind power equipment, high-strength wind power bolt and nut connection has the advantages of simple construction, disassembly and replacement, good stress and fatigue resistance. The domestic high strength bolt connection construction method generally adopts the torque method. At present, most of the domestic mainstream wind [...]

By |July 12th, 2020|A325, A490, ASTM International Standard, Bolt Types, Heavy Hex Bolts, High Strength Bolts, High Strength Structure Bolts|Comments Off on High Strength Wind Power Bolt

Blackening Treatment of High Strength Bolts

The blackening treatment of high strength bolts mainly requires the appearance, including the following points: 1. The appearance of blackening treatment is blue black or dark black. 2. The crystal of the film is compact and uniform, and the product has no exposed bottom, no obvious color difference, no whitening and other abnormal phenomena. If [...]

By |July 10th, 2020|A490, ASTM International Standard, Bolt Types, Heavy Hex Bolts, Hex Bolts, High Strength Bolts, High Strength Structure Bolts|Comments Off on Blackening Treatment of High Strength Bolts