Hardware SnapNrack Sealing Washer Lag 4.5" Stainless Steel, 242-02168 Mfr. Part # 242-02168 Size 4-1/2 In.
Rail Splice Kits Roof Tech APEX End Floating Splice, Universal, RT3-01-UEFSBK Mfr. Part # RT3-01-UEFSBK