Marine Grade Stainless Steel Screws Supplier - Marine Hardware

Marine Grade Stainless Steel Screws are corrosion-resistant fasteners designed for harsh marine environments. Made from high-quality stainless steel like 316 or 304, they resist saltwater and humidity. Ideal for boats, docks, and coastal structures.

Size: #4 to 1/2" diameter, lengths from 1/4" to 6"

Grade: 316 or 316L stainless steel (marine grade)

Viscosity: N/A (not applicable for solid hardware)

Buoyancy: Sinks in water (density ~8.0 g/cm³)

Material: Austenitic stainless steel (Cr-Ni-Mo alloy)

Corrosion Resistance: High (resists saltwater, acids, and chlorides)

Tensile Strength: 85,000 - 95,000 psi (316 grade)

Finish: Passivated or polished for enhanced corrosion resistance

Thread Type: Coarse or fine (machine or self-tapping)

Drive Type: Phillips, slotted, hex, or Torx

Temperature Range: -50°F to 1000°F (-45°C to 540°C)

Standards: ASTM A193, ASTM A320, or DIN 912

Marine Grade Stainless Steel Screws and Marine Hardware typically comply with maritime standards such as ASTM F593 for stainless steel fasteners and ASTM A276 for stainless steel bars. They may also meet ISO 3506 for corrosion resistance and mechanical properties. Always verify specific product certifications with the manufacturer.