--HIGH QUALITY MATERIAL: 304 stainless steel construction, rust and corrosion resistant.
--SIZE: Nut size: 29 * 13 * 3mm (1.14 * 0.51 * 0.12in).
--PRACTICAL: Almost universally fits any track system on boats.
--EASY INSTALLATION: Mount any kayak accessories with this kit. Easy installations with M6 screwdrivers (not included).
--APPLICATION: Perfect kayak mounting hardware replacement kit for kayakers.