Simpson Strong-Tie 2-1/2 Inch LV Insulated Plastic Washer (500-Pack) - PINWP-250W White Construction Fasteners for Deck Building & Structural Framing

The PINWP is a powder-actuated washered pin designed to fasten rigid insulation board to building structures. The PINWP consists of a 0.300″-headed fastener with a pre-mounted 1 3/8″ flat plastic washer. The PINWP is for high-volume applications and is designed for fastening into concrete and steel.