Plastic strap clamp used to hold polyester fabric or stainless steel strap in place. Strap clamp is mounted between each collector which distributes uplift across the entire row of strap. Made with glass-filled polypropylene plastic for durability and strength. Concave base grabs roofs to prevent rotation or movement. Built-in flashing allows roof sealant to gather to assure weatherproofing. Strap clamp is held in place with stainless steel screw with a sealant to ensure weatherproofing (sold separately).