The SPAX 1-3/4 in. dia. Plasti-Grip ci Prong insulation washer is the perfect solution to attach rigid insulation. Patented prongs enable pre-spotting for easy on-the-wall fastening. Appropriate for all substrates including masonry/foundation walls, wood and steel. Recommended for use with SPAX #8 or #10 Dia construction screws. Energy efficient and labor-saving attachment of all types of rigid insulation. Do it Once, Do it Right with SPAX.
Designed to reduce thermal bridging and air infiltration
Flexible design allows washer to flatten flush without tearing insulation
For use with: extruded polystyrene (XPS), expanded polystyrene (EPS), polyisocyanurate (ISO) or mineral/stone wool
Recommended by leading insulation manufacturers
Compared to adhesives a washer/screw combination does not require setup time, will not sag and will compress the insulation flat against the substrate
Utilize with appropriate type and length fastener depending on substrate type and insulation thickness, minimum fastener head diameter of 1/4 in required
