Folio metal screws grip attachments to a fiberglass boat.
Mark the location of the hole on the masking tape with a pencil.3. Set the drill motor direction to "Reverse." Drill a hole at the pencil-marked location with the drill motor. Remove the drill bit. The threads of the screw chop into the counsel to influence the screw in area. The self-drilling gratuity of a phase metal screw dulls rapidly when it contacts the glass fibers contained in fiberglass. This leads to cracks forming in both the fiberglass and the gel coat covering the fiberglass. Using the Correct installation techniques Testament detain cracks from forming, while allowing you to advantage event metal screws in the hull of your boat.
Instructions
1. Match a drill bit from a drill bit place to the shaft vastness of the sheet metal screw. Secure a drill bit matching the size of the screw shaft that leaves the threads around the screw exposed.
2. Cover the hull of the fiberglass boat with masking tape where the sheet metal screw will be placed.Fiberglass consists of glass fibers embedded in a resin. This combination makes a boat lustrous without compromising vigour. Episode metal screws utilize a self-drilling gratuity to contrive a gap in a info.
Secure a drill bit 1/16-inch larger than the drilled hole. Drill a 1/32-inch deep hole at the entry point of the hole drilled through the fiberglass. This relieves stress in the thin gel coat covering the hull of your fiberglass boat.
4. Coat the threads of a sheet metal screw with silicone caulk.
5. Thread the screw into the drilled hole by turning it clockwise with a nut runner. Stop turning the screw when the screw's head sits tight to the boat hull and caulk squeezes out around the screw. Wipe excess caulk from the surface of your boat with a rag.
