3" Diameter, high-density polypropylene washer for attaching mineral wool and rigid insulation to various substrates in high wind-load areas.

Features

• Large 3" dia. plastic washer prevents crushing of soft insulation
• Compatible with nails and screws
• For use with high wind velocity areas
• Made in USA
• Recommended for use with Grip-Deck® screws for all substrates
• Also can be used to attach drainage board for foundation water-proofing systems

1M pcs/ctn