The Dana 231502B is a heavy-duty, self-locking flanged nut used on driveshaft yokes, stub-shaft connections, or mid-ship coupling ends in commercial truck driveline assemblies. It is designed to secure the driveshaft or yoke to its mating flange, preventing loosening under vibration, torque load, and heavy-duty driving conditions — ensuring safe and reliable torque transfer.
- Thread size: 1.250-18
- Flange (outer) diameter: ~ 2.125 in
- Nut thickness: ~ 0.63 in
- Hex / socket size: ≈ 1.625 in (for installation)
- Self-locking / heavy-duty hardened steel construction — built to meet OEM-spec standards for durability and resistance to loosening under load
