Usage Scenarios And Installation Methods Of Double-Headed Bolts

A double head bolt, as the name suggests, has threads on both ends and a bare rod in the center, either thick or thin. It is also called double head screw or double head stud. It is generally used on large main equipment, such as mining machinery, bridges, automobiles, reducer frames and so on.

In what cases are double-headed bolts used?

1. When the thickness of the connecting body is large and the length of the bolt is long, double-headed bolts are used.

2. Double-head bolts are used to connect thick plates and places where it is inconvenient to use hexagonal bolts, such as concrete roof frames, roof beams hanging monorail beams suspension parts, etc.

3. In large-scale main equipment, some connectors need to be frequently disassembled, the external thread is easily damaged, then the application of double-headed bolts will be more convenient to disassemble and replace.

Double head bolts are manufactured in accordance with GB897-GB901 standards, the material used: Q235, 45#, 40Cr, 35CrMoA, Q345D, specifications: M3mm-M100mm, length can be customized according to user needs.

High-strength double-head bolts made of 35#, 45#, 35CrMoA, 25Cr2MoV, 304, 316, 304L, 316L, 2H, 2HM, B7, B7M, B16, B8, 8, B8M, 8M, are widely used in the fields of electric power, chemical industry, petroleum refining, valves, railroads, bridges, steel constructions, automobile and motorcycle parts and so on.



How to install double-headed bolts?

1. Use lubricating oil when installing the double-headed bolts to prevent the bolts from being jammed during screwing in, and they can also be disassembled for repeated installation.

In order to ensure the fastening end of the double-headed bolts and the tightness of the equipment body threads, and not in the process of loading and unloading nuts, double-headed bolts appear any loosening phenomenon, so the fastening end of the double-headed bolts should be used over the wave, to give the back of the diameter of the center has a certain amount of surplus, you can choose to use the form of the shoulder structure or the back of the threads of a few turns of the shallower depth of the tightening method, when the double-headed bolts are installed into the body of the soft material threads, the surplus can be slightly When the double-headed bolts are installed into the soft material threaded body, the interference can be slightly larger.

2. Double head bolts axis line must be perpendicular to the surface of the body, in the bottom hole and tapping must pay attention to this point, the installation of the best angle ruler to check, when the axis line and the surface of the body of a small amount of tilt, you can use a tap to correct the screw holes, tilt larger than the corrections can not be made with brute force to bolt damage.

As a professional Double Head Bolts manufacturer, Aozhan Fasteners is committed to providing high-quality products and excellent service.With advanced production equipment and a team of highly qualified employees, Aozhan Fasteners continuously introduces new technologies and management methods to ensure stable quality and on-time delivery. In addition, Aozhan Fasteners focuses on cooperation with customers to provide customized solutions according to their needs. To learn more about our products and services, don't hesitate to contact us today at info@aozhanfasteners.com. Make Aozhan Fasteners your preferred partner for your fastener needs!