Products / SFS #15 Dekfast Phillips Head Fastener

The #15 Dekfast is the heaviest-shank screw in the Dekfast family, a #3 Phillips-drive drill-point fastener with 13 threads per inch for attaching insulation and membrane to steel, wood and structural concrete decks. It carries a cathodic epoxy e-coat and is listed in lengths from 2 in. to 16 in.; structural concrete is pre-drilled with a 7/32 in. carbide bit. The data sheet prints 15/15 Kesternich cycles per FM 4470, 800 hours of salt spray per ASTM B117 and State of Florida approval FL 20311.