North Sonar Session Saver Box

The North Sonar Session Saver Box is a comprehensive hardware toolkit built for riders using North's Sonar Modular Foil System. Packaged in a compact, organized toolbox, it contains a full set of titanium fasteners, T-nuts, a Torx T40 wrench, and marine grease — everything needed to assemble, maintain, or field-repair a Sonar foil setup. North positions this kit as an on-the-go resource for foilers who want to avoid cutting a session short due to a lost or stripped screw.

• Screw material: Titanium
• T-nut material: Titanium
• Screw sizes included: M8x16 (×4), M8x23 (×4), M8x25 (×8), M8x30 (×9), M8x33 (×3), M8x35 (×3), M8x40 (×2)
• T-nuts included: 6
• Tool: Torx T40 wrench
• Also included: Marine grease, Sonar Foil Assembly Guide, storage toolbox
• SKU: 85009.230160

This kit is aimed at any rider who owns a North Sonar foil, regardless of skill level. Because all Sonar Modular Foil System components use Torx T40 titanium hardware, having a dedicated spare set on hand is practical insurance against corroded, cross-threaded, or misplaced fasteners. The variety of screw lengths covers the different joint points across the Sonar foil assembly — mast-to-board, mast-to-fuselage, and wing connections — so riders can address most hardware issues without needing to source individual screws.

The inclusion of marine grease and an assembly guide makes the box particularly useful for riders who are newer to foiling and still learning proper assembly procedures. North recommends applying grease to screw threads and the undersides of screw heads before each assembly to prevent seizing, so having a supply packed alongside the hardware streamlines the process.

The Session Saver Box sits within North's Sonar foil accessories category alongside individual replacement parts and the smaller Sonar Tool Kit, which contains just the Torx T40 wrench and marine grease without the full screw inventory. Where the Tool Kit covers basic assembly needs, the Session Saver Box serves as a more complete field-repair solution with a broad selection of titanium screws and T-nuts in a single case.

For riders considering alternatives, most foil brands offer basic tool kits, but few bundle a full range of spare titanium fasteners in one package. Comparable options from other brands typically require purchasing individual screw packs separately. The Session Saver Box consolidates that into a single purchase, which may justify its price for riders who foil frequently or travel to remote spots where replacement hardware is hard to find.