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Bolt refers to a screw with a larger diameter. It can also have no head, such as a stud bolt. Generally, it is not called "stud" but "stud". It is used for the fixed link function of connecting machinery. Both ends of the stud bolt have threads, and the screw in the middle is thick and thin. It is generally used for mining machinery, bridges, automobiles, motorcycles, boiler steel struct
Bolts made of high-strength steel or requiring large preload can be called high-strength bolts. High strength bolts are mostly used for the connection of bridges, rails, high-voltage and ultra-high voltage equipment. The fracture of this kind of bolt is brittle fracture. High strength bolts applied to ultra-high pressure equipment need to be prestressed to ensure the sealing of the conta
Stainless steel hexagon socket screws are fasteners made of stainless steel material, mainly used for connecting and fixing in mechanical equipment, electronic products, chemical equipment and other fields. Its material is mainly austenitic stainless steel such as SUS201, SUS304, SUS316, etc., which has the characteristics of oxidation resistance, corrosion resistance, and high temperature resi
Generally refers to pointed head, coarse teeth, hardwood screws, as well as aluminum alloy and plastic screws. Special self-tapping screws used for tapping metal holes are called taps. Self-tapping screws are screws with
Components that do not meet conventional standards, have complex and unique shapes. These irregular parts require unconventional processing methods in the production process, such as CNC machining, forging, die-casting, etc., and even in some cases, manual manufacturing and fine polishing are required. Their size and outer contour are complex and varied, making it impossible to produce them on
A shackle is a detachable circular metal component used to connect various rope head eye rings, chain rings, and other rigging. The detachable buckle consists of two parts: the main body and the horizontal bolt. Some horizontal bolts have threads, some have pins, and the common types are straight and circular shackles. Shackles are often named according to their intended use, such as the anchor
Fishtail clamp (track joint clamp), commonly known as track clamp or fishtail plate, plays a connecting role at the track joint. Divided into light rail, heavy rail, and crane rail. Fishtail plate is a type of connecting fastener used for connecting tracks.
Anchor rods are the most basic component of roadway support in contemporary coal mines. They reinforce the surrounding rock of the roadway together, allowing the surrounding rock to support itself. Anchor rods are not only used in mines, but also in engineering technology for the main reinforcement of slopes, tunnels, and dam bodies.
Main features: high pressure resistance, long support time, easy installation and not easily deformed. Main use: Mainly used for supporting mine tunnels, secondary support of mine tunnels, and support of mountain tunnels. As the main type of steel used to manufacture retractable metal supports for tunnels, U-shaped steel is widely used both domestically and internationally.
Miners steel, also known as mining I-beam, is a specialized profile for mine roadway support, which complies with the YB/T24-1986 standard. Its material is mostly made of high-strength steel such as 20MnK and Q275, with main models of 9 #, 11 #, and 12 #, suitable for strong support scenarios in underground tunnels and tunnels of coal mines
Each country in the world has its own standards for producing steel rails, and the classification methods are also different. China GB 2585-2007, British standard BS series, German standard DIN series crane rails, International Union of Railways UIC series, American standard ASCE series, Japanese standard JIS series.
Stainless steel alloy steel British American DIN1587 integrated cap spherical head nut nut nut
