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Viteria e Bulloni Nautici

Nautical Screws and Bolts

Let's now talk about boat screws and bolts , a fundamental element for the safety and reliability of the vessel, especially in a marine environment where oxidation is a constant risk.

⚙️ Types of Boat Screws and Bolts

1. Recommended Materials

AISI 316 stainless steel (marine):
- Maximum resistance to salt corrosion .
- Ideal for outdoor, wet or submerged environments.
AISI 304 : good, but less resistant to marine corrosion (more suitable for interiors).
Bronze or brass : used for electrical or plumbing systems.
Titanium : Lightweight and super strong, but expensive (for high-performance boats).

2. Types of Screws and Bolts

Type	Usage
Countersunk head screws	For flush surfaces, e.g. teak decking.
Pan head screws	Good for joining mechanical parts.
Bolts with nuts	Structural connections (e.g. moorings, bollards).
Self-tapping stainless steel	For fixing to fiberglass, wood or metal.
Stainless steel metric screws	With continuous thread, for precise assembly.
Parker screws	For quick fixings in wood.

🧰 Related Accessories

Flat washers and growers : distribute the load, prevent loosening.
Self-locking nuts (Nyloc) : resist vibrations.
Threaded Inserts : For creating solid threads on fiberglass.
Sealants/anti-seize agents (e.g. Tef-Gel, Loctite): prevent oxidation and seizure.