M6 x 40mm Zinc Roofing or Gutter Bolts (100pc) | Connectec.uk
Roofing Bolt & Nut M8x25, Mild Steel | Roofing Bolts and Nuts | Bolts - Fasteners - Orbital Fasteners
Perry Group - No.6073 Self Drilling Screws for Steel Roofing - Hex Head with Integrated Washer
14 Metal Roofing Screws: (250) Screws x 2-1/2" ABC Gray Hex Head Sheet Metal Roof Screw. Self Starting/Tapping Metal to woodsheet Metal Screws with EPDM Washer. for Corrugated Roofing: Amazon.com: Industrial &