Blackened stud

Double-headed bolt (Stud), also called double-headed screw or double-headed Stud. For the fixed link function of connecting machinery, both ends of the double head bolt are threaded, the middle screw, some thick and some thin. Generally used in mining machinery, Bridges, cars, motorcycles, boiler steel structures, pylons, long-span steel structures and large buildings. Name Double End Studs Standard GB897-GB901 GB 953 IFI 136 ASME B 18.31.1 JB /T 4707 HG /T 20613 Size M5～M64 1/4～4 Length 40mm～1500mm Grade 4.8 5.8 6.8 8.8 10.9 12.9 Material Carbon steel、Stainless steel、355 35K 45# 40Cr 35CrMo 42CrMo Surface black, zinc plated, color zinc, hot dipped galvanized, dacromet Description Double-headed bolt (Stud), also called double-headed screw or double-headed Stud. For the fixed link function of connecting machinery, both ends of the double head bolt are threaded, the middle screw, some thick and some thin. Generally used in mining machinery, Bridges, cars, motorcycles, boiler steel structures, pylons, long-span steel structures and large buildings. Construction operation technology A bolt is a screw with a larger diameter and may have no head, such as a double-headed bolt. Generally, it is not called "double-headed bolt" but "double-headed stud". The most common form of double-headed stud is threaded at both ends with a polished rod in the middle. Most TYPICAL USE: ANCHOR BOLTS, OR SIMILAR ANCHOR BOLTS, THICK CONNECTIONS, WHEN NOT POSSIBLE WITH ORDINARY bolts. Scope of application 1, used in the main body of large equipment, need to install accessories, such as mirror, mechanical seal seat, deceleration frame, etc. At this time, it is used to screw one end into the main body, and the other end of the nut is installed after the attachment. Because the attachment is often removed, the thread will be worn or damaged, and the replacement of the double head bolt will be very convenient. 2. When the thickness of the connecting body is very large and the bolt length is very long, the double-headed bolt will be used. 3. It is used for connecting thick plates and inconvenient hexagonal bolts, such as concrete roof truss, roof beam hanging monorail beam hanging parts, etc. Keywords: Blackened stud