Ercole M13-044 Half Coupler 40-50mm with 5/8″ socket

Avenger C210 Clamp Baby Pipe w/ Tommy Bar 10mm to 55mm Range 100Kg Payload

Works on diameters from 10mm to 55mm. It has a 5/8″ mounting stud and a load capacity of 220.46 lb (100 kg). Made of aluminum.

Avenger C462-1 Eye Coupler LP w 16mm Spigot Range 48-52mm 500kg Payload.

The swivel eye coupler is made from two twin couplers designed to rotate 360° for firm, quick and easy interconnection for truss, bars or pipes. They can support up to 300kg and it works on pipes ranging from 48mm to 52mm.