Simpson Strong-Tie offers a full range of gas- and powder-actuated tools and fasteners designed to maximize jobsite productivity and operator comfort. The PINW is a powder-actuated washered pin designed to fasten rigid insulation board to building structures. The PINW consists of a 0.300-in. headed fastener with a pre-mounted 1-7/16 in. flat metal washer. The PINW is for high-volume applications and is designed for fastening into concrete and steel. PINW 2-1/2 in. Powder-Actuated Metal-Washered Pin for Insulation Board (50-Qty) (Pack of 27000).