Key Features

• John Deere hexagonal lock nut, M83389, with a 7.925 mm (5/16") nominal thread diameter
• Internal threading combined with an integrated self-locking mechanism to resist loosening under vibration
• Includes self-locking nuts as specified in the product description
• Secured in a fixed position through mechanical deformation of the locking feature during installation
• Precise hex geometry for reliable wrench engagement and torque transfer
• Designed for vibration-prone environments common in agricultural and heavy Machinery applications

Product Details

• Part number: M83389
• Thread diameter: 7.925 mm (5/16") nominal
• Locking type: self-locking nut with internal threading
• Type: Hexagonal lock nut
• Installation characteristic: Secures in a fixed position via deformation of the locking feature

Compatibility

• Requires mating bolt or stud with a matching 7.925 mm (5/16") external diameter and compatible thread pitch
• Compatible with components specifying M83389 or equivalent 5/16" lock nut size
• Suitable for John Deere equipment and other machinery assemblies that rely on 5/16" self-locking hex nuts
• Effective in scenarios with frequent vibration, shock loading, or repetitive torque cycling