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. [...]
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 [...]
Dacromet bolt coating- apply coating (colored coating, Dacromet) on the workpiece as required, with appearance of silver, black or color, and salt spray test for more than 240 hours. Dacromet: the appearance of Dacromet coating is uniform silver gray. The coating contains 80% thin zinc sheet and aluminum sheet, and the rest is chromate. It [...]
There are three kinds of Hexagonal bolt materials: carbon steel, stainless steel, copper. Carbon steel: We distinguish low carbon steel, medium carbon steel, high carbon steel and alloy steel by carbon content in carbon steel. 1. Low carbon steel C% ≤ 0.25% is usually called A3 steel in China. It is called 1008101510181022 in foreign [...]
Hexagon head bolts installation and application is directly related to the quality and service life of fasteners, and the safety of bolts is the primary consideration. Main factors affecting hexagon head bolt: the selection of material, thickness of steel plate, processing and cutting, surface coating and installation of steel structure parts shall comply with design [...]
According to the items, the Grade 12.9 Hex Bolts can be divided into grade 12.9 external hexagon screw, grade 12.9 hexagon socket head screw (cup head), grade 10.9 countersunk head hexagon screw (flat cup), grade 10.9 semicircular head hexagon socket head screw (round cup), grade 12.9 set screw (machine meter), grade 12.9 hexagon plug screw [...]
The installation and use of hexagon head bolts are directly related to the quality and service life of fasteners, and the safety of bolts is the primary consideration. The main factors affecting the hexagon head bolt: the selection of material, thickness of steel plate, processing and cutting, surface coating and installation of steel structure shall [...]
Internal Hexagon Bolts are divided into cylinder head hexagon socket head bolts, which is the most commonly used one. There are many kinds of hexagon head bolts. According to the material, they are divided into iron bolts, carbon steel bolts and stainless steel bolts. Stainless steel hexagon bolts also have stainless steel SUS304 and SUS202 [...]
The hot-dip galvanized hexagon screw is to place the bolt in the high-temperature zinc solution of 600 ℃ so that its surface is coated with a dark gray surface. The advantages of hot-dip galvanized hexagon screw are strong adhesion of zinc coating, thick coating and strong corrosion resistance. Hot dip galvanized bolts are used for [...]
Dacromet hexagon bolt has many advantages, which are listed as follows: Ultra strong corrosion resistance: the thickness of Dacromet hexagon bolt film is only 4-8 μ m, but its antirust effect is more than 7-10 times of that of traditional galvanizing, hot galvanizing or coating. The standard parts and pipe joints treated by Dacromet process [...]
From the following three aspects, the difference between high strength hexagon bolt and ordinary bolts is introduced. In terms of strength grade High strength hexagon bolts are widely used. The strength grades of 8.8s and 10.9s are commonly used, of which 10.9 is the most. The strength grade of ordinary bolts is lower, generally 4.4, [...]
As a small hardware component, high strength hexagon socket bolt is widely used, ranging from a small electronic product and mechanical equipment to automobiles, airplanes, ships, etc., which need to move to high-strength hexagon bolts. In addition, the high-strength hexagon bolt is applied to the following industries: electronic industry, electrical industry, electrical industry, power industry, [...]
When drawing the Thread Hole of Heavy Hex Bolt, use two thick solid lines, close the end with a triangle (also thick solid line), then offset two thin solid lines (offset distance is thread depth) outwards, and close the front of the triangle with a thin solid line. In addition, the following three points should [...]
The High Strength Hexagon Socket Bolts connection is to clamp the plates of the connecting plate by a large amount of tightening pre tension in the bolt bar, which is enough to produce a great friction force, so as to improve the integrity and rigidity of the connection. When subjected to shear force, according to [...]
The Steel Structure Bolt thread refers to a kind of uniform helix bulge on the screw or bolt surface or the section of the internal surface, which mainly plays the role of connection, adjustment, transfer movement, etc. Generally speaking, the thread of steel structure bolt can be divided into three types according to the structural [...]
What are the installation points of high strength hexagon bolt? Let's make a list: 1. During the assembly of high-strength hexagon socket bolt connection pair, the side with round table of nut shall face the side with chamfering of washer. For the assembly of large hexagon head and high-strength hexagon bolt connection pair, the chamfered [...]
Calculation and Drawing of Hexagon Bolt: Hexagon bolt is a very common bolt, which is widely used. It can fasten connected parts by bolts, nuts and washers. The function of the ring is to prevent the surface of the connected part from being damaged when tightening the nut, and to make the pressure of the [...]
Is it necessary to use gasket when connecting heavy hex bolts? The gasket of heavy hex bolts is mainly used to avoid the scratch of bolt and reduce the bending force. Whether to use washers or not depends on the specification of heavy hex bolts. When the bolt assembly hole is too large, a washer [...]