Foil Screws

Foil Screws & Hardware

Foil screws, track nuts and hardware for keeping your setup secure

Our foil screws collection includes replacement screw sets, track nuts, mast-fuselage hardware, front wing screws, rear stabiliser screws and foil assembly spares for wing foiling, SUP foiling, surf foiling and downwind foiling.

Small parts matter. The wrong screw length, thread or fitting can damage expensive foil components or leave your setup unsafe. If you are replacing lost hardware, changing a foil part or building a mixed setup, check compatibility before ordering.

TrySetup checks at Lymington AdviseCompatibility help before you buy RideSecure hardware for better sessions

Foil screws buying guide

Foil screws and track nuts are easy to overlook, but they are essential to the safety and performance of your foil. This guide explains how to choose replacement foil screws, what to check before buying, and how to connect this collection to the rest of your foil setup.

How to choose the right foil screws

The safest way to choose foil screws is to match them to the exact foil brand, model, connection point and component generation. A mast-to-board screw is not the same as a mast-to-fuselage screw, and a front wing screw may not fit a rear stabiliser or track nut system.

Before buying, check:

Brand and system: AXIS, Duotone, Fanatic and other foil brands use specific hardware.
Thread size: common foil hardware may use M6 or M8 sizes, but you must confirm the correct thread for your setup.
Screw length: a screw that is too short may not hold securely; one that is too long may bottom out or damage the component.
Connection point: mast plate, track nut, front wing, rear stabiliser, mast-to-fuselage and footstrap screws all serve different jobs.
Material: stainless steel, titanium and brass parts may be used in different areas depending on the brand and fitting.
Condition: replace rounded, corroded, bent or stretched hardware before it causes a bigger problem.

If you are unsure, contact us with a photo of the part you need to replace and details of your foil setup.

What type of foil hardware do you need?

Track nuts and mounting screws

Used to secure the foil mast plate into the board tracks. Check screw length, thread and whether your system uses standard or quick-mount hardware.

Mast and fuselage screws

Used to connect the mast to the fuselage. These need to be correct for the brand, material and connection system.

Front wing screws

Used to secure the front wing to the fuselage. Always match these to the correct front wing range and fuselage.

Rear stabiliser screws

Used to secure the rear wing or stabiliser. These are often small but critical, so avoid riding with damaged or missing screws.

Foil screw compatibility: avoid the common mistakes

Foil hardware is not a “near enough” purchase. The most common mistakes are choosing the wrong screw length, assuming all M8 screws are the same, mixing hardware from different foil generations, or using a worn screw because it still appears to tighten.

Do not force a screw that feels tight before it is fully seated.
Do not use a screw that bottoms out before clamping the part securely.
Do not ride with rounded heads, damaged threads or missing washers where your system requires them.
Do not assume titanium, stainless steel and brass parts are interchangeable in every location.
Do not guess if you have changed mast, fuselage, board or foil generation.

A small hardware mistake can damage a board track, foil mast, fuselage or wing. If in doubt, ask before ordering.

Popular foil screw and hardware options

This collection includes foil hardware from brands and systems used across wing foiling, SUP foiling, surf foiling and downwind foiling. Choose the part that matches your setup rather than buying only by appearance.

Duotone Foil Track Nut Stainless Steel – replacement track nut hardware for compatible Duotone foil mounting systems.
Duotone Foil Mounting System Screw Set – mounting hardware for compatible Duotone foil setups.
AXIS M8 Foil Stainless Screw and Slider Set – AXIS-specific stainless screw and slider hardware.
Duotone Rear Stabilizer Screw Set - P/H/S/R – replacement rear stabiliser screws for compatible Duotone systems.
Duotone Screw Set Foil Front Wing Aero Free – front wing screw set for compatible Duotone Aero Free foils.
Duotone Foil Screw Paste – useful for helping maintain foil hardware and reduce issues from regular assembly in saltwater environments.

Browse related brand collections including AXIS and Duotone Wing & Foil.

Complete the rest of your foil setup

If you are replacing screws because you have changed part of your foil setup, it is worth checking the full system at the same time. Hardware compatibility often depends on the mast, fuselage, front wing, rear stabiliser and board connection.

If you are not sure whether your screw issue is caused by the hardware, the board track, the mast plate or the fuselage connection, speak to us before riding again.

Care, maintenance and saltwater use

Foil screws work hard. They are loaded under pressure, regularly assembled and disassembled, and often used in saltwater. A simple maintenance routine helps keep your setup safer and easier to use.

Rinse your foil hardware after saltwater sessions.
Dry screws, track nuts and threaded parts before storage where practical.
Check for corrosion, burrs, rounded heads and damaged threads.
Keep spare screws in your foil bag so one lost screw does not end the session.
Use the correct tool and avoid over-tightening.
Check brand guidance before using paste or anti-seize products on specific hardware.

Good hardware habits are especially important if you travel, share kit, swap wings regularly or ride in shallow, sandy or salty locations.

When should you replace foil screws?

Replace foil screws when they are damaged, heavily worn, corroded, rounded, bent, cross-threaded or no longer tighten smoothly. It is also sensible to replace hardware if you have bought a used foil and are unsure of its history.

You should also check screws carefully after hard impacts, groundings, unusual vibration, movement in the foil, or any session where the foil felt loose or noisy. Do not keep riding if a screw connection feels compromised.

For regular riders, carrying a small spares kit with key screw sizes, track nuts and the correct tool is a simple way to protect valuable time on the water.

Get help matching foil screws to your setup

If you are not completely sure which foil screw set you need, send us the foil brand, model, year if known, mast, fuselage, front wing, rear stabiliser and the connection point you are trying to replace. A clear photo of the missing or damaged area is also helpful.

For wing and foil setup help, visit The SUP Co x Lymington or explore Try It Now at The SUP Co x Lymington for selected demo and product advice options. For broader paddleboard testing, our SUP Test Centre at Woodmill is also available.

Our approach is simple: check compatibility first, fit the right parts, then ride with confidence.

Useful buying guides and related reading

These guides and collections are useful if you are replacing hardware as part of a bigger foil upgrade or setup change.

For related shopping routes, browse wing foil boards, SUP foil boards, downwind foil boards and parawings.

Need help finding the right foil screw?

Foil hardware is small, but the details matter. Tell us the foil brand, model, component and connection point, and we will help you identify the correct replacement screw set or track nut before you order.

You can also review finance options at The SUP Company and our delivery information before placing an order.

Foil screws FAQs

Are foil screws universal?

No. Foil screws are not universal. They vary by brand, thread size, length, connection point and foil system. Always match the screw set to the correct foil part and brand.

How do I know what foil screw size I need?

Check your foil brand’s specification, the original hardware, the connection point and the part you are attaching. If you are unsure, send us details of your foil setup and a photo of the missing or damaged screw location.

What is the difference between foil screws and track nuts?

Foil screws are the threaded bolts used to secure foil parts together. Track nuts slide into the board’s foil tracks and allow the mast plate to be bolted securely to the board.

Can I use hardware from another foil brand?

Only if you have confirmed the thread, length, material and fit are correct for your exact setup. In most cases, the safest option is to use brand-specific replacement hardware.

Why does screw length matter on a foil?

A screw that is too short may not grip securely. A screw that is too long can bottom out, fail to clamp properly or damage the part it is threaded into. Correct length is essential.

Should I replace rounded or corroded foil screws?

Yes. Rounded, corroded or damaged screws should be replaced before they seize, fail or become impossible to remove. Do not ride if a critical connection feels compromised.

Should I carry spare foil screws?

Yes, especially if you travel, swap wings regularly or ride often. A small hardware spares kit can save a session if a screw is dropped, lost or damaged.

Do I need screw paste or anti-seize for foil hardware?

Screw paste can be useful for some foil hardware, especially with regular saltwater use, but always check that it is suitable for your brand and hardware material before applying it.

What should I do if a foil screw will not tighten properly?

Stop and check the screw, thread, part alignment and screw length. Do not force it. If it still does not tighten smoothly, ask for advice before riding, as the connection may be damaged or the wrong screw may be fitted.

Can The SUP Company help me identify the correct foil screw?

Yes. Send us your foil brand, model, mast, fuselage, front wing, rear stabiliser and a photo of the screw location. We will help you identify the correct replacement where possible.