Durable hex steel coupling nut with a zinc finish, sized 5/16-24 x 7/8 inches. Designed to join two male threaded fasteners or extend threaded rods with a secure, flush connection.

• Material: Steel
• Finish: Zinc plating for corrosion resistance
• Thread size: 5/16-24 UNC
• Length: 7/8 in
• Type: Hex coupling nut

Ideal for automotive, machinery, construction, and general fastening projects where two male threads need to be joined or extended. The hex profile allows easy tightening with standard wrenches, while the zinc finish helps resist rust in moderate environments.

Usage tip: Thread the coupling nut onto one threaded stud or bolt until partway, then tighten with a wrench while aligning the second mating bolt or rod on the opposite end. Ensure a proper fit by confirming a 5/16 in diameter and 24 threads per inch match.