Accommodate or place any accessory in any track system on kayaks with this universal guide nut and screw kit. Features 304 stainless steel construction, almost universal installation, this is a perfect replacement kit for mounting accessories in the track system on kayaks, boats.Features: 304 stainless steel construction , rust and corrosion resistant. Nut size: 29*13*3mm (1.14*0.51*0.12in). Almost universally suitable for any track system on boats. Mount any kayak accessories with this kit. Easy installations with M6 screwdriver (not included). kayak equipment for kayak.Specifications:Material: 304 stainless steelModel: M6Screw size: 6 * 24.5mm / 0.24 * 0.96in Thread length: 20mm / 0.79inNuts Size: 29*13*3mm / 1.14*0.51*0.12inPackage size: 12.5*8*1cm / 4.9*3.1*0.4inPackage weight: 53g / 1.9ozPackage List:4*Screw4*Track Nut