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Roofing Screws manufacturers suppliers . Roofing Screws Nails with Plastic Caps. FOB Price: US $ 10.0-14.0 / Box Min. Order: 500 Boxes. Galvanized roofing screw nails with EPDM washer and Plastic Caps 1. Product name . Jun 04, 2014 I need to install some ribbed, polycarbonate clear roof panels. Somewhere I have seen rubber washer screws that have bigger washers so that the plastic panels don't eventually pull through the screws from wind lift. Jan 24, 2010 Tightness can make some difference. Not much. Listen to the roof installed with exposed fasteners . You can hear it shifting as the metal heats in the morning and trying to find a way to expant between the screws . You need to remove the screws that are leaking now and replace them with #14 oversized roofing screws .

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