Wood Screws for Corrugated Polycarbonate
#9 x 1-1/4" screws used to fasten corrugated polycarbonate sheets to wood base. 100 screws with EPDM sealing washers per bag.
This is the only EPDM screws offered, 1 1/2 " in length. The Solar Shade products have a non-condensing coating on the inside, and require a standoff to prevent the sheeting water from dripping from the purlins. The standoffs are 1" high, leaving only 1/2" threads in the wood. The screws themselves are a quality product (rating 5), but this vendor doesn't sell the 2" screws that the sheeting product needs.
Great for wood frame greenhouses.