2691037-00 Simplicity Lawn Tractor - Parts

This lock nut is designed to fit lawn mowers and other gardening equipment. It is a multi-use nut with varying applications depending on your tool and model. For installation instructions, refer to th...

This is a nut for your lawn and garden equipment. The diameter is 5/16 inches with a thread size of 18. The nut has a washer like base, with a wide flange to ensure it will not loosen with heavy vibrations.