Size 10-32 stainless steel ny-lock nuts, for use with all our 10-32 screws. Handy for applications where you can reach inside the kayak and tighten the nut with a wrench. Use for deck fittings and hatch installations. Corrosion resistant, locks tightly. Use a washer or not at your discretion. Same nut as part number 9800259 and 07.2116.0000.