Hardware SnapNrack Sealing Washer Lag 4.5" Stainless Steel, 242-02168 Mfr. Part # 242-02168 Size 4-1/2 In.
Module Clamps IronRidge Aire Lock End 30mm-40mm Black, AE-END-01-B1 Mfr. Part # AE-END-01-B1 Range 30-40 mm