High Strength hex head bolt 10.9 applied on the automotive industry

Bolts made of high strength steel, or requiring greater pre-tightening force, can be called high strength bolts.

High-strength bolts are mostly used for the connection of bridge, rail, high pressure and ultra-high voltage equipment.

The fracture of this kind of bolt is mostly brittle fracture.

Applied to high strength bolts on ultra-high voltage equipment, in order to ensure the sealing of the container, it is necessary to apply a large prestress.

Before plating process

Hot rolled coil strip- (cold dial) -spherical (softening) annealing-mechanical phosphorus removal-pickling-cold dial-cold forging forming-thread processing-heat treatment-inspection

Suzhou Tuoertai Precision Technology Co., Ltd. is a company specializing in precision hardware tools, mainly engaged in a variety of CNC cutting tools and CNC parts, as well as fasteners business.

At present, we are a special dealer of Dingtai High-tech, mainly engaged in milling tools, PCB tools, 3C tools and special tools. Dingtai high-tech is a listed company, integrating research and development, production and sales as one of the high-tech enterprise, is one of the world's largest PCB drilling needle suppliers, strong technology, advanced equipment, with micro drilling, milling cutting tools and precision tool product research and development test center.

According to the customer's samples or drawings, we can provide high quality and precision CNC parts. At the same time, we can provide various standard fastener business, such as washers, bolts, nuts.

We will do our best to provide quality products and services, and we are willing to grow together with you