Stainless steel screw with brass nut JP-Australia for US Fin Box M4 PH2 (20 or 25 mm)

This set of screws and nuts from JP-Australia is a practical spare or replacement accessory for all boards equipped with the US-Box system. The M4 crosshead PH2 screw allows for quick assembly and disassembly of fins without the need for specialized tools – a standard cross screwdriver is all that's required. The flat nut slides into the box’s guide, enabling easy adjustment and precise positioning of the fin – this allows you to tailor the board's handling characteristics to your own preferences. Available in two lengths: 20 mm – for thinner boxes or shorter slots 25 mm – for deeper boxes or thicker decks