18-8 / 304 Stainless Steel Solar Neoprene Bonded Sealing Washers.

• Stainless Steel Solar Panel Mounting Neoprene Backed Washers Are Used to Create a Watertight Seal.
• EPDM Rubber Bonded Washers are Commonly Used with Solar Mount Lag Bolts, Hanger Bolts, Sheet Metal Screws and Self Tapping Tex Screws.
• Sometimes Called a Solar Panel Roofing Washer, it Seals the Head and Hole of The Screw or Bolt.
• The Solar Metal Washer is made out of 18-8 / 304 Grade Stainless Steel and The Cushioning Backed Rubber is Made out of Neoprene.
• A Sealing Washer is Commonly Used to Mount Solar Brackets / Tracks in Metal Roofing and Siding.