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Products
Black zinc plated hinge bolts
Swivel Bolt Series
Description
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Swivel Bolt Series
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Related popular products
Hot-dip galvanized embedded plate
Same as electrogalvanized embedded plate, using Q235 or Q355 carbon steel, steel plate thickness 8-50mm, anchor bar diameter 10-32mm, in line with GB/T 700 standard.
Colored zinc plated countersunk cross bolts
The head of the countersunk cross bolt is conical and can be completely embedded in the surface of the connected parts to maintain a smooth appearance (standard GB/T 68). Common materials are carbon steel, stainless steel or engineering plastics (such as nylon 66), with galvanized or natural color treatment on the surface.
Colored zinc flange bolts
The head of the flange bolt has a round flange to increase the contact area and disperse the pressure (standard GB/T 5787, GB/T 5789). Common specifications M6-M30, material Q235 or 35CrMo, surface galvanized or blackened.
Stud bolts
Stud bolts have threads at both ends and a bare rod in the middle, which is used to connect thick plates or penetrate installation (standard GB/T 901). Common materials are 45# steel or 40Cr, with galvanized or blackened surface.
Black zinc-plated hexagonal drill tail wire
Through the black passivation liquid treatment containing silver salt (c2D), a 10-15μm coating is formed, and the salt spray test is more than 96 hours. Environmentally friendly black zinc plating uses trivalent chromium passivation, does not contain hexavalent chromium, and complies with RoHS standards.
High-strength blackened gasket
High-strength blackened gasket is a gasket that forms a black Fe₃O₄ oxide film on the surface of alloy steel through chemical oxidation (blackening treatment), with a film thickness of about 0.5-1.5μm. Its base material is usually 65 manganese steel or 42CrMo alloy steel, and after quenching + tempering treatment, the hardness can reach HRC35-45.
Electrogalvanized pins
GB/T 882-2008 “Pin” standard, nominal diameter 3-100mm, materials include carbon steel, stainless steel, etc., electrogalvanized layer thickness 5-12μm, in line with c1B or c1A post-treatment requirements.
Colored zinc-plated expansion bolts
The color zinc passivation process (c2C) is adopted, the coating thickness is 8-15μm, and the corrosion resistance of the salt spray test is more than 72 hours, which has both anti-corrosion and decorative functions.
10.9S Torsion Shear Bolts
10.9S Torsion Shear Bolts are high-strength bolts designed for steel structures. The preload is controlled by twisting off the plum head at the tail (standard GB/T 3632). Each set includes bolts, nuts, and washers, which need to be manufactured in the same batch to ensure the consistency of mechanical properties.
Welded plate anchor (welded plate anchor bolt)
The welded plate anchor consists of a threaded rod, a welded pad and a stiffening rib. The pad is fixed with bolts by welding to form an integrated structure of “bolt + pad”. The pad increases the contact area with the concrete, disperses the load and improves stability.
Electro-galvanized hexagonal drill thread
Made of 1022A carbon steel, the surface hardness reaches HV560-750 after heat treatment, and the core hardness reaches HV240-450. The surface is electro-galvanized to form a 5-12μm coating, which meets the GB/T 13912-2002 standard, and the salt spray test reaches 24-48 hours without white rust.
Colored zinc-plated gaskets
Colored zinc-plated gaskets are passivated on the basis of electrogalvanizing to form a rainbow-colored passivation film (containing trivalent chromium or hexavalent chromium) with a film thickness of about 0.5-1μm. Its anti-corrosion performance is significantly better than ordinary electrogalvanizing, and the surface color is bright, with both functionality and decorativeness.
Electroplated zinc flange bolts
The head of the flange bolt has a round flange to increase the contact area and disperse the pressure (standard GB/T 5787, GB/T 5789). Common specifications M6-M30, material Q235 or 35CrMo, surface galvanized or blackened.
Colored zinc-plated pins
Use colored zinc passivation (c2C), coating thickness 8-15μm, salt spray test can reach more than 72 hours, colorful appearance, better anti-corrosion performance.
Hexagon socket hot-dip galvanized bolts
The hexagon socket bolt head has a hexagon socket hole and needs to be tightened with a hexagon socket wrench (standard GB/T 70.1). Common materials are 35CrMo or 42CrMo, and the surface treatment is divided into three types: electrogalvanized, color zinc-plated, and black zinc-plated.
Electrogalvanized embedded plate
Q235 or Q355 carbon steel, the thickness of the steel plate is usually 6-50mm, the diameter of the anchor bar is 8-25mm, in line with GB/T 700 or GB/T 1591 standards.
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