National Hardware 5/16 In. X 1-3/4 In. X 4-1/4 In. Stainless Steel Round U Bolt

Introducing the Stainless Steel U‑Bolt sized 5/16" × 1‑3/4" × 4‑1/4", engineered for demanding marine and outdoor projects. Crafted from premium stainless steel, this fastener showcases a sleek, polished finish that resists the harshest elements while delivering reliable strength where it matters most.

Why choose this U‑Bolt? Its passivated surface dramatically reduces oxidation, ensuring long‑term durability even in salty air. The non‑magnetic composition prevents interference with electronic equipment, making it ideal for boat decks, docks, and any exterior structure that requires steadfast performance.

• Marine‑grade stainless steel: Provides superior resistance to rust and corrosion, perfect for salt‑water environments.
• Passivated surface treatment: Enhances corrosion protection, extending the bolt's service life in harsh weather.
• Non‑magnetic construction: Eliminates magnetic attraction, safeguarding nearby navigation or electronic systems.
• Robust dimensions 5/16" × 1‑3/4" × 4‑1/4": Offers ample thread engagement for secure anchoring of heavy fixtures.
• Versatile outdoor application: Suitable for marine hardware, fencing, railing, and other exterior installations.

Secure your projects with confidence: This stainless steel U‑Bolt delivers unmatched durability, corrosion resistance, and reliability, ensuring your installations stay firmly in place season after season. Trust the quality of a fastener designed specifically for the toughest outdoor challenges, and experience peace of mind with every tightened nut.