3″ diameter, high-density polypropylene washer to attach mineral wool onto various substrates. Also can be used to attach drainage board for foundation water-proofing systems.
Recommended for use with Grip-Deck® screws for all substrates.
*Patented and/or Patent Pending
Large 3″ dia. plastic washer prevents crushing of soft insulation
Compatible with nails and screws
For use in high wind velocity areas
Made in USA