1, used in the main for large equipment, need to install accessories, such as mirrors, mechanical seal seat, double headed bolt, deceleration frame, etc.. A double headed bolt is used, one end is screwed into the main body, and the other end is provided with a nut. Because the accessory is often disassembled, the thread can be worn or damaged, and the replacement of the double end bolt is very convenient.
2, for the thickness of the connection is very large, bolt length is very long, will use double headed bolt.
3. Used for connecting thick plate and inconvenient to use six point bolt connection, such as concrete roof truss, roof beam, suspension monorail, suspension and so on.
Stud
Hejian City, Hebei province Longsheng screw Co., Ltd.
September 15, 2016