Marine Bolts, Hex Head & Through Bolts

Marine Grade Bolts

Marine-grade bolts play a crucial role in ensuring the structural integrity of boats. Fisheries Supply, a leading marine bolt supply store, offers an extensive selection of high-quality marine bolts, screws, and other fasteners designed to withstand the saltwater environment.

Types of Marine Grade Fasteners

• Marine Bolts
Marine bolts are engineered to resist corrosion and maintain strength in saltwater environments.
Fisheries Supply stocks a variety of marine grade bolts, including:
• Hex head bolts: Featuring a six-sided head for easy tightening with a wrench.
• Through bolts: Designed to pass entirely through materials for secure fastening.
• Marine toggle bolts: Ideal for hollow bulkheads or areas with limited access.


• Marine Screws
Marine screws and bolts are essential for various marine applications. Fisheries Supply provides a wide range of options, including:
• Cap screws: Suitable for high-stress applications.
• Lag screws: Heavy-duty fastener with a hex head, used for wood and other materials.

Materials for Marine Grade Bolts

Fisheries Supply offers marine bolts in various corrosion-resistant materials:

• Stainless steel: Marine stainless steel bolts provide excellent durability and corrosion resistance.
• Hot dip galvanized steel: Offering good protection against rust and corrosion.
• Titanium: Providing exceptional strength-to-weight ratio and corrosion resistance.
• Silicon bronze: Ideal for use in saltwater environments due to its corrosion-resistant properties.

Choosing the Right Marine Fasteners

Selecting the appropriate boat bolts is crucial for ensuring the safety and longevity of your vessel.

Factors to consider include:

• Environmental conditions (saltwater vs. freshwater).
• Load-bearing requirements.
• Compatibility with other materials used.

Fisheries Supply's representatives can assist you in selecting the right marine stainless bolts, screws, and other fasteners.

Maintenance and Care

Regular maintenance of marine through bolts and boat screws is essential to prevent corrosion and ensure they are not loosening. By choosing high-quality marine bolts, hex head & through bolts from Fisheries Supply and following proper maintenance procedures, you can significantly extend the life of your marine equipment.

Shop now for marine bolts and save or check out our large selection of marine nuts.