WeatherBond's Insulation Fastener is used in conjunction with WeatherBond's Insulation Plate for insulation attachment in WeatherBond EPDM, PVC, and TPO mechanically attached and fully adhered roofing systems. Insulation Fasteners are compatible with wood and steel decks. The Insulation Fastener features a buttress thread design for high pull-out and back-out resistance and an extra sharp space point for quick installation.