Blue Sea CableClam Waterproof Through-Deck Fittings -
CableClams provide a leak-free way to run antenna and electrical cables through a surface, yet allow the cable and connector to be removed at a later time. Using your own drill to create the precise hole diameter required greatly improves waterproofness over pre-drilled models. A tapered center seal grips wire securely when the fasteners are tightened. Molded components have countersunk fastener heads and radiused edges.