Sea-Dog Rail Base Fitting 2-3/4" Round Base 90° 316 Stainless Steel - 1" OD

The Sea-Dog Rail Base Fitting 2-3/4" Round Base 90° 316 Stainless Steel with 1" OD (MPN 280901-1) is a precision marine hardware component engineered for demanding saltwater and high-corrosion environments. This 90-degree rail base fitting serves as the foundational anchor point for securing stainless steel tubing and railing systems aboard vessels, offshore platforms, and coastal installations where corrosion resistance is non-negotiable.

Constructed from investment-cast 316 stainless steel, this rail base fitting offers superior corrosion protection compared to lower-grade stainless alloys. The 316 specification includes molybdenum, which significantly extends service life in chloride-rich environments including saltwater exposure. The 1-inch outer diameter (OD) tube accommodates standard marine railing dimensions, while the 90-degree angle orients the fitting for perpendicular rail installations on deck, bulkhead, or transom applications. Installation requires three fasteners (not included) and an 1/8-inch Allen wrench to secure set screws. The 0.049-inch wall thickness on compatible stainless tubing ensures structural integrity under dynamic loads typical of vessel movement and weather exposure.

This fitting serves commercial fishing operations, recreational boating, naval platforms, and offshore construction where safety railings must withstand constant saltwater immersion and UV exposure. The 2-3/4-inch round base diameter provides stable mounting footprint on deck surfaces. Set screws (available separately, SKU 299999-1) allow tool-free adjustment for fine-tuning rail alignment. Marine operators and riggers value Sea-Dog fittings for their predictable performance in high-salt environments where standard steel would fail within seasons. The 316 stainless specification meets or exceeds ASTM B176 standards for corrosion-resistant marine applications.