John Deere E50101 Lock Nut is a John Deere Equipment Manufacturer (OEM) part designed with a 5/16" (0.7925 mm) size. This lock nut ensures reliable performance and compatibility with your John Deere equipment. If you need assistance finding the right John Deere part or accessory, John Deere specialists are available Monday through Friday, from 8:00 AM to 5:00 PM (EST), by calling 800-345-2396. You can also reach out via email for expert support. Hartville Hardware strives to provide accurate parts recommendations sourced from systems, but please note that parts and compatibility may change without notice. If you are unsure about the part you need, please contact the Customer Support Team for guidance. Model Number: E50101