Armstrong M6 Generic Titanium T Nut Set-Dome Head

The Armstrong M6 Generic Titanium T Nut Set with Dome Head screws is a foil track hardware kit designed for mounting a hydrofoil mast plate to a board's foil track. Produced by Armstrong Foils, a New Zealand-based brand known for their hydrofoil systems, this set pairs titanium sliding T-nuts with 316L stainless steel Torx-drive dome head screws. The "Generic" designation indicates the hardware is sized to fit standard M6 foil track channels, making it usable across a range of boards beyond Armstrong's own lineup.

Armstrong developed their own titanium T-nut and 316L stainless steel screw combination to address corrosion and fatigue at the mast-to-board connection point — one of the most stress-critical junctions in any foil setup. Titanium T-nuts resist saltwater corrosion far longer than standard stainless or aluminum alternatives, while the 316L marine-grade stainless screws provide reliable clamping force.

• Thread size: M6
• T-nut material: Titanium
• Screw material: 316L stainless steel
• Screw head type: Dome head, Torx drive
• Kit contents: 4x titanium sliding T-nuts, 4x 25 mm dome head screws, 4x 30 mm dome head screws
• Compatibility: Standard M6 foil track systems

This hardware set suits any foil rider looking to upgrade from factory-supplied stainless steel or aluminum track nuts to a more corrosion-resistant titanium option. It is relevant across all skill levels — from beginners setting up their first board to experienced riders maintaining a quiver of foil-ready boards. The dome head variant is appropriate for riders whose board layup and track recess accommodate a protruding screw head rather than a flush countersink profile.

Riders who session frequently in saltwater will benefit most from the titanium T-nuts, which hold up considerably better than standard hardware over repeated wet-dry cycles. Armstrong recommends replacing screws annually, as repeated loading and unloading reduces fastener strength over time regardless of material grade. Carrying a spare set is common practice among riders who travel or ride daily.

Within Armstrong's hardware catalog, this set sits alongside the M6 25 mm Stainless Steel Mast Top Hardware Set, which pairs stainless T-nuts and bidirectional titanium washers with 316L dome head screws at a higher price point. Armstrong also offers a countersink-head version of this same titanium T-nut set for boards that require flush-mount screws. For riders on Armstrong's newer A+ connection system, a separate A+ System Hardware Set is available with titanium barrel nuts instead of sliding T-nuts.

Compared to aftermarket titanium foil hardware from brands like Slingshot or generic marine fastener suppliers, the Armstrong set is a mid-priced option that includes both 25 mm and 30 mm screw lengths in a single package — covering the two most common foil track depths without requiring riders to source lengths separately.