Direct Attachments Chem Link 4" Diameter E-Curb Round - White, F1357WH Mfr. Part # F1357WH Size 4 In.
Hardware QuickBOLT 1/2" x 4" Roof Screw HEX Driver for 5/16 HWH Screws, 17655 Mfr. Part # 17655 Diameter 1/2 In.