The black hexagon head bolts with strength shank have standard hexagonal head, which is convenient for tightening and loosening with tools. The strength shank is between the head and the threaded shank and has a smooth surface. It can be used in heavy machinery such as cranes, excavators, presses, etc., can also be used in bridge construction and buildings, and can also be used in automobile engines, chassis and aerospace industries.
The thicker parts near the head of the black hexagonal bolt with strength shank have no threads and they have higher shear resistance. We produce strictly in accordance with the BS 1769-1951 standard.
The black hexagon head bolts with strength shank is highly suitable for outdoor equipment, such as bicycle racks and agricultural equipment, etc. When used in conjunction with nylon lock nuts, it can be firmly connected regardless of rainy days, muddy ground or bumpy road conditions.
In a factory environment, the black hexagonal bolt with strength shank can fix heavy conveyor belts or mechanical arms. Due to its thick rod body, it reduces bending under repeated stress, and the black coating can minimize glare in bright working Spaces to the greatest extent.
Truck drivers and RV owners rely on the black hexagonal bolt with strength shank for axle repair or trailer hook installation. The thickened shaft handle can resist potholes and rough roads, and the black surface can effectively cover dirt. They are also used to fix roof solar panels.
Black hexagon head bolts with strength shank are usually made of carbon steel or alloy steel. Most people like to have it blackened because it looks beautiful. For more demanding environments, zinc-nickel coatings can be chosen. Please select the appropriate surface treatment method and size according to your specific usage requirements.