Cylindrical rigid coupling with 4 fastening holes on the surface, with 4 M4 machine-grade screws and 1 matching hexagonal spanner.
These couplings are rigid clamp types used in a variety of industrial applications and automation to connect motors and lead or ball screws.
Connection Shaft Diameter : 3.17 to 3.17mm, 4 to 4mm, 5 to 5mm (small)
5 to 5mm (large), 4 to 5mm, 4 to 6mm, 5 to 6mm, 5 to 8mm
5 to 10mm, 6 to 6mm, 6 to 8mm, 6 to 10mm, 7 to 7mm, 7 to 8mm
8 to 8mm, 8 to 10mm, 8 to 12mm, 10 to 10mm, 10 to 12mm
Top wire size: M4-M5 (different models, different top wire)
Material: Brass
Weight: about 14g-27g