Features 304 stainless steel construction, almost universal installation, this is a perfect replacement kit for mounting accessories into the track system on kayaks, boats.Features:304 stainless steel construction, rust and corrosion resistant.Nuts Size: 29 * 13 * 3mm (1.14 * 0.51 * 0.12in).Almost universally suitable for any track system on boats.Mount all kayak accessories with this kit.Easy installations with M6 screwdriver (not included).Kayak hardware replacement kit for kayak.Specifications:Material: 304 stainless steelModel: M6Screw Size: 6 * 24.5mm / 0.24 * 0.96inThread 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 53g / 1.9ozListe des colis:4 * Screw4 * Track Nut