#6 Bulkhead Nut Alum

The #6 Bulkhead Nut Alum is a critical fastening component designed for marine applications where reliability below the waterline matters. Whether you're installing through-hull fittings, securing transducers, or assembling deck hardware, this aluminum bulkhead nut provides the corrosion-resistant fastening solution that saltwater and freshwater boaters depend on. Built to resist the oxidation and galvanic degradation that standard steel nuts succumb to, this nut ensures your marine systems stay watertight and structurally sound season after season.

Manufactured from marine-grade aluminum, the #6 Bulkhead Nut Alum delivers exceptional corrosion resistance in both saltwater and freshwater environments where steel fasteners fail prematurely. The aluminum construction eliminates the galvanic corrosion that occurs when dissimilar metals contact in wet conditions, a common cause of seized or degraded through-hull hardware on fishing boats and cruisers. With compact dimensions (2.75 x 0.9 x 3.65 inches) and minimal weight at just 0.02 lbs, this nut integrates seamlessly into tight mounting spaces without adding unnecessary burden to your vessel's systems.

Anglers and boaters installing depth finders, GPS antennas, through-hull drains, or cabin hardware will appreciate the reliability this #6 bulkhead nut provides in demanding marine environments. Pair it with matching aluminum or stainless-steel bolts to maintain corrosion compatibility and prevent electrolytic degradation at the fastening interface. For anyone serious about maintaining watertight integrity and avoiding mid-season hardware failures, this aluminum bulkhead nut is a core component for above-deck and below-deck installations.