SKU 3019677517500
1-3/4 in. Dia. plastic tapered washer used to attach rigid insulation to masonry/foundation walls, wood, steel and more. These patented prongs enable pre-spotting for easy on-the-wall fastening and enhanced energy efficiency. And with no hand assembly required, they're a perfect, labor-saving solution. Shoot it, Screw it, or Nail it to any substrate.