555-25925 - Half Coupler 2" Silver 220lbs Max Load
For tubes 48-51mm in diameter
Mfr Name: Global Truss
Mfr Number: 812S
555-18355 - Screw Fitting Set Pk 4
Crossbar Screw Fittings
4 screw fittings for lighting crossbars.
Mfr Name: Konig & Meyer
Mfr Number: 24621-000-55
MCM is a great company with a large selection of good quality products.