Global Truss ST-UJB/C-12 Coupler 4-Pack for the ST-UJB-12 Junction Block

The ST-UJB/C-12 is the coupler set for the F34 ST-UJB-12 corner junction block, supplied as a pack of four. Couplers are the load path of a truss joint, so the steel grade, the bolt size and the torque are all part of the specification rather than details.

These are 40.7 mm (1.6 in) couplers in S45C steel with M12 x 20 mm bolts on a 1.75 pitch thread. Global Truss specifies a 18 ft-lb bolt torque and a 10 mm hex key. The four-pack weighs 2 lb. The longer ST-UJB/C2-12 is a different coupler; do not mix them in a joint.