Screw coupler

Materials: 45 # high-quality carbon structural steel.

Specifications: D14mm-40mm.

Use: apply to HRB335, HRB400 reinforced the connection.

Performance: with the "reinforced mechanical connection technology common point of order" JGJ107-2004I-level joint performance requirements.

Model: ordinary-type, forward-and-back forward-thread type and calibre-changed type,

Screw thread parameter:

Basic thread form (75°)

16-22   thread pitch (mm) 2.5

25-40     thread pitch (mm) 3.0