High strength fasteners should be quenched and tempered according to technical requirements. Heat treatment conditioning is to improve the comprehensive mechanical properties of fasteners to meet the product requirements of tensile strength value and yield ...
The bolt is used for fastening or fastening in mechanical or structural components, and is usually fastened to mechanical parts, usually classified as fasteners (fastener). The bolt is manufactured in accordance with the relevant national or international st...
Bolts made of high-strength steel or bolts requiring greater pretension are all called high strength bolts. High strength bolts are used for bridge, rail, high pressure and extra high pressure equipment. The fracture of this bolt is mostly brittle fracture....
Fastening metal fasteners in parts often because of various reasons for the occurrence of corrosion, corrosion in some fasteners will be completely locked, causing the fastener itself operating loss of performance which is unable to remove or continue to l...
Anchor bolts Hexagon head bolts GB / T 5782-2000 Cross recessed pan head tapping screws GB845-85 Hexagon socket head cap screws GB / T 70.1-2000 Square head bolts Class C GB8-88 Standard spring washers GB93-87 Cross recessed countersunk head tappin...
Hardness means the ability of the material to withstand the hard objects into its surface. It is one of the important performance indicators of metal materials. The higher the hardness, the better the wear resistance. Commonly used hardness indicators are Brin...
Qr Code
