Stainless Steel Bow Eye U Bolt – AISI 316 is a robust marine fastening and attachment fitting designed for installation on a boat’s bow or stern. Its U-shaped eye creates a practical connection point for suitable marine securing arrangements, such as a trailer winch strap, bow strap, tie-down line, or mooring line. The fitting is manufactured from AISI 316 stainless steel, a material commonly selected for marine hardware because it offers strong resistance to corrosion in wet, humid, and saltwater-exposed environments.

This heavy duty bow eye has a nominal rod diameter of 3/8 inch and an overall length of 5 inches. Its extended 3-1/2-inch threaded section provides adjustment during installation and makes the fitting suitable for mounting through compatible boat hull structures, transoms, panels, or reinforced surfaces. Before installation, the available mounting depth and hole spacing should be checked carefully to confirm that the dimensions are appropriate for the intended structure.

Unlike a standard U bolt used mainly to clamp pipes or round objects, this stainless steel U bolt has a rounded external loop intended to serve as an attachment eye. The two threaded legs pass through the mounting surface and are secured from the opposite side using the plate and nuts. The backing plate helps distribute pressure across a broader area than individual nuts alone. The product image shows the bow eye supplied with two plates and four nuts, allowing adjustment from both sides of the mounting surface. Buyers should confirm the package contents when ordering.

The AISI 316 construction makes this 5 inch U bolt suitable for boats, yachts, tenders, fishing boats, leisure craft, and other marine applications where exposed metal hardware may regularly encounter water or salt spray. Its polished stainless-steel appearance also complements other deck hardware and fittings. Regular freshwater rinsing and periodic inspection are recommended as part of normal marine-hardware maintenance, particularly after saltwater use.

Correct installation is important because the forces applied to a boat bow eye can transfer directly into the hull or supporting structure. The fitting should therefore be mounted through a sound, properly reinforced area with correctly aligned holes. The nuts should be tightened evenly so that the plates sit securely without damaging or excessively compressing the mounting surface. Installation requirements may vary according to the boat’s construction, and professional advice should be obtained whenever the structure or intended use is uncertain.

This large U bolt is useful when a longer threaded reach is required than that offered by shorter bow-eye fittings. However, its dimensions alone do not determine suitability for every pulling, towing, lifting, or tie-down application. No working-load or lifting rating has been provided for this product, so it should not be treated as certified lifting hardware or used beyond the limits established for the complete installation.

Key Features:

• Stainless Steel Bow Eye U Bolt – AISI 316 combines a rounded attachment eye with two long threaded legs for through-mount installation on compatible marine structures.
• Manufactured from AISI 316 stainless steel for dependable corrosion resistance in marine and outdoor environments.
• Features a 3/8-inch nominal rod diameter and a 5-inch overall length.
• Includes a 3-1/2-inch thread length, providing useful adjustment for different compatible mounting depths.
• The rounded bow eye provides an accessible connection point for appropriate straps, lines, hooks, or similar securing equipment.
• The product image shows two mounting plates and four adjustable nuts for secure installation and improved pressure distribution.
• Polished stainless-steel construction gives the fitting a clean appearance that coordinates with other boat deck hardware.
• Its long threaded design makes it a practical option for buyers searching for stainless U bolts, large U bolts, or a heavy duty bow eye for marine installation.

Applications / Suitable For:

• Stainless Steel Bow Eye U Bolt – AISI 316 is suitable for use as a bow or stern attachment point on compatible boats and other marine craft.
• Boat-trailer winch strap or bow strap connection arrangements where the complete installation is properly reinforced and correctly specified.
• Securing and tie-down applications on boats, yachts, tenders, fishing boats, and leisure craft.
• Connecting an appropriate mooring or securing line when permitted by the vessel design and installation requirements.
• Replacement of an existing boat bow eye with matching 3/8-inch diameter, 5-inch overall length, and 3-1/2-inch thread dimensions.
• Marine maintenance, refit, restoration, and boat-building projects requiring a through-mounted stainless-steel eye fitting.
• Outdoor installations exposed to moisture, weather, or salt spray, subject to appropriate structural assessment.

FAQs:

Q: What are the dimensions of the Stainless Steel Bow Eye U Bolt – AISI 316?
A: It has a 3/8-inch nominal diameter, a 5-inch overall length, and a 3-1/2-inch threaded length.

Q: What is this boat bow eye commonly used for?
A: It is commonly installed on a boat’s bow or stern to provide an attachment point for suitable winch straps, tie-down arrangements, securing lines, or mooring lines.

Q: Is this bow eye suitable for saltwater environments?
A: Its AISI 316 stainless-steel construction provides corrosion resistance suitable for marine environments. Routine rinsing, cleaning, and inspection are still recommended.

Q: Can this U bolt be used for overhead lifting?
A: No lifting rating has been provided. It should not be used as certified lifting hardware unless its capacity and the complete installation have been independently verified for that purpose.