Hardware SnapNrack Rectangular Base Flange 1.5" AlMg, 172-05807 Mfr. Part # 172-05807 Diameter 1-1/2 In.
Module Clamps IronRidge QM Mid Clamp 30-45mm Black, QMR-UMC3045-B-20 Mfr. Part # QMR-UMC3045-B-20 Range 30 - 45 mm