The Versico ASAP Insultite Insulation Fastener consists of a 3" round plastic locking insulation plate and a threaded #12 fastener pre-assembled as one unit for insulation attachment on VersiGard® EPDM, VersiWeld® TPO, and VersiFlex™ PVC mechanically attached and fully adhered roofing systems. The Versico ASAP Insulation Fastener is used to attach insulation to wood.