5" inspection port can be added to any boat to allow access inside the hull.
Deck Plate Installation Instructions
- 1. Remove deck plate center. Using the deck plate outer ring as the template and scribe line around the inside of the ring.
- 2. Drill 3/8" (9.2mm) starter hole adjacent to inside scribed line. Cut 1/8" (3.2mm) outside of the line (larger) with a reciprocal saw.
- 3. Replace center into the deck plate ring and apply a 3/8" (9.2mm) bead of silicone caulk on the edge of the spigot (flange) and under side of ring.
- 4. Fasten deck plate to deck with #8 pan head screws or thru-bolts, maintaining a minimum of 1/16" (1.6mm) of caulk as a gasket and keeping the plate flat. If on a curved surface, fill gaps completely with caulk, without bending the trim ring. Thin ring deck plates may be mounted without fasteners. If adhesion is questionable, drill and counter bore thin ring for #8 fasteners.
Do not use countersunk or oval head screws. Damage will result.