FM-75 LW Base Ply Fastener

FM-75 combine the base ply fasteners and Galvalume disc into one fully integrated, self-locking fastener securing base ply to flat or sloped lightweight insulating concrete roof decks. Designed to chemically bond with the concrete, using uncoated galvanized legs. The rigid reinforced disc has holes allowing adhesive materials to flow through and bond ply sheets to the base ply. Disc and fastener are integrally locked. Use FM-75 (1.2" long) on NVS concrete decking of minimum 1" thickness conforming to industry standards for compressive strength and dry density.