Marine Hardware
1,476 parts & accessories — free shipping over $99.
The stainless fittings, fasteners, cleats, blocks, shackles, and rigging hardware that hold a boat together — chosen for strength and corrosion resistance in a saltwater environment.
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Attwood 316 Stainless Steel Alloy Flush Mount Fuel Vent - 90° Vent
Attwood 316 Stainless Steel Alloy Flush Mount Fuel Vent - Straight Vent
Attwood 6" Fold-Down Dock Cleat
Attwood 90° P-Trap Fuel Tank Vent - Black w/Black Vent Head
Attwood 90° P-Trap Fuel Tank Vent - Black w/Stainless Steel Trim Cover
Attwood 90° P-Trap Fuel Tank Vent - Flush Mount - Black w/Stainless Steel Vent Head
Attwood Cowl Ventilator
Attwood Deck Fill f/Carbon Canister System - Angled Body & Scalloped Black Plastic Cap
Attwood Deck Fill f/Carbon Canister System - Angled Body & Scalloped Chrome Cap
Attwood Deck Fill f/Carbon Canister System - Angled Body & Scalloped Stainless Steel Cap
Attwood Deck Fill f/Carbon Canister System - Straight Body & Scalloped Chrome Cap
Attwood Deck Fill f/Carbon Canister System - Straight Body & Scalloped Stainless Steel Cap
Attwood Deck Fill Replacement Cap & Chain
Attwood Deck Fills f/Pressure Relief Systems - Straight Body - Scalloped Black Plastic Cap
Attwood Fender Cleat - 3-1/2"
Attwood Flush Hatch Pull
Attwood Gasoline Deck Fill - 1-1/2" Stainless Steel Alloy
Attwood Neat Cleat Stainless Steel - 6"
Attwood Soft Grip 13" Steering Wheel
Attwood Springlift Black Composite - 10mm Socket - Extended 26.9" - Compressed 15.2"
Attwood Straight Fuel Vent - Black Polypropylene
Attwood Utility Snap Hook - 4"
Attwood ZAMAK Chrome Plated Zinc Cleats - Pair - 4-1/2"
Beckson 6" Clear Center Screw-Out Deck Plate - Black
Beckson 14" x 24" Flush Hatch White - ASA Material - Acrylonitrile Styrene Acrylate
Beckson 4" Clear Center Screw Out Deck Plate - Black
Beckson 4" Clear Center Screw-Out Deck Plate - Beige
Beckson 4" Clear Center Screw-Out Deck Plate - White
Beckson 4" Smooth Center Screw-Out Deck Plate - Beige
Beckson 4" Smooth Center Screw-Out Deck Plate - Black
Beckson 4" Smooth Center Screw-Out Deck Plate - White
Beckson 5" Stow-Away Deck Plate - White w/12" Bag
Beckson 5" Twist-Out Deck Plate - White
Beckson 6" Clear Center Screw Out Deck Plate - White
Beckson 6" Non-Skid Pry-Out Deck Plate - Beige
Beckson 6" Non-Skid Pry-Out Deck Plate - White
Beckson 6" Non-Skid Screw-Out Deck Plate - Black
Beckson 6" Non-Skid Screw-Out Deck Plate - White
Beckson 6" Smooth Center Pry-Out Deck Plate - White
Beckson 6" Smooth Center Screw-Out Deck Plate - Beige
Beckson 6" Smooth Center Screw-Out Deck Plate - Black
Beckson 6" Smooth Center Screw-Out Deck Plate - White
Beckson 8" Clear Center Screw-Out Deck Plate - Black
Beckson 8" Non-Skid Pry-Out Deck Plate - Beige
Beckson 8" Smooth Center Screw-Out Deck Plate - White
Davis Quick Fist Clamps (Pair)
Davis Rudder Position Indicator
Davis Super Quick Fist Clamp
How to choose marine hardware
Marine hardware lives or dies on material grade. 316 stainless steel is the go-to for exposed fittings because it resists salt corrosion far better than 304 stainless or zinc-plated steel. For high-load rigging you’ll also see forged (not cast) stainless and marine-grade bronze. Casting can hide voids that fail under load, so for anything safety-critical, forged parts are worth the premium.
Match the hardware to the load. Cleats, shackles, blocks, and padeyes carry working loads that must exceed the forces they’ll see — a line under strain, an anchor snubbing in a chop, a sail sheet loaded up. Check the working load limit (WLL), not just the look, and back every load-bearing fitting with a plate so the deck spreads the force.
Watch for galvanic pairing. Mixing dissimilar metals — stainless fasteners in aluminum, bronze near steel — invites corrosion. Use compatible metals, isolating washers, or anti-seize, and rinse hardware with fresh water after salt exposure to extend its life dramatically.
Frequently asked questions
- Is 316 or 304 stainless better for marine use?
- 316 stainless is better for marine environments. It contains molybdenum that significantly improves resistance to salt and chloride corrosion. 304 stainless is fine for occasional-splash or freshwater use but will show rust staining in constant saltwater exposure.
- What does “working load limit” mean on marine hardware?
- Working load limit (WLL) is the maximum load a fitting is rated to carry safely in normal use — well below its breaking strength, with a safety factor built in. Always choose hardware whose WLL comfortably exceeds the real-world loads it will see.
- Why do stainless bolts sometimes corrode or seize?
- Usually because of galvanic action between dissimilar metals (like stainless in aluminum) or crevice corrosion in low-oxygen spots. Use compatible metals, an isolating washer or anti-seize compound, and rinse with fresh water after salt exposure.