Supply of high-strength bolts, Yongnian County Bowen specializes in processing high-strength bolts fastening strength bolts M22, we have advanced technology, excellent equipment, high-tech assembly line, is a professional supplier of high-strength bolts, high strength and reasonable price bolt factory, complete specifications, allowing you to buy the rest assured useful products. Special high strength bolts with a wrench on the nut tight, but a huge bolt pre-tension controlled by the nut and plate, to be connected also had a pre-pressure parts of the same size. In the pre-pressure along the surface of the connected members will have a greater frictional force of high strength bolts 8.8, obviously, this frictional force is small as long as the shaft, member will not slip, the connection will not be destroyed, which is high strength bolts connecting principle. Supply of high-strength bolts, fasteners Yongnian County Bowen specializes in processing high-strength bolts, we have advanced technology, excellent equipment, high-tech assembly line, is a professional supplier of high-strength bolts, reasonable price, complete specifications, allowing you to buy the rest assured useful products. Bolt material: 18Cr2Ni4W, 25Cr2MoV steel; bolt size: M27 ~ M48. Because of such steel is easy to form a passive film on the surface, and this will make the bolt passivation film can not get good adhesion chemical nickel-phosphorus layer, so you must take special measures to pre-treatment to remove the film in advance. High strength bolts, high strength bolts price, high strength bolts franchise Bowen (certified merchants) provided by Yongnian County Bowen fasteners. Yongnian County Bowen fasteners (www.bwjgj.com) in the field of fasteners devoted boundless enthusiasm and passion, Bowen fastener has been customer-centric, the idea of ??creating value for customers, quality, service win the market, and sincerely hope to cooperate with the community to create success, create brilliant. Related businesses are welcome inquiries, contact: Guochao Feng.