If you are building a dual battery setup or tidying a busy engine bay this 3/8In 250A Power Post gives you a solid stud to land heavy cables on a fixed point. The 3/8 in thread suits common lugs and the 250 A rating covers most 12V and 24V accessory circuits in touring rigs and small boats. Bolt it near your battery or fuse board and you have a clear junction that keeps wiring organised.

The zinc plated brass post carries current better than mild steel and shrugs off the sort of surface rust you see near batteries in humid sheds and coastal towns. The black thermoplastic base insulates the stud from the body panel and handles typical under-bonnet temperatures in Australian conditions. Two mounting holes let you lock the base down firmly so the stud stays put when the cable weight starts to hang off it on corrugations.

• Rated to carry up to 250A current
• 3/8 in threaded brass power post
• Zinc plated finish for corrosion resistance
• Black thermoplastic base provides insulation
• Suits heavy-duty battery and power wiring
• Twin mounting holes for secure attachment
• Compatible with standard 3/8 in ring lugs
• Compact junction point for tidy installations
• Suitable for automotive and marine electrical use
• Helps centralise multiple high-current connections

Q: Can this 250A power post be used on 24V systems?

Yes, it can be used on 24V systems provided the current does not exceed 250A. The 250A rating relates to current, not voltage, so it suits both 12V and 24V layouts within that limit. Always match cable size to the current you plan to run. Protect the circuit with suitable fusing upstream.

Q: Is the brass stud isolated from the mounting surface?

Yes, the stud is mounted in a thermoplastic base that insulates it from the panel. This helps prevent accidental short circuits to bodywork in vehicles and boats. You still need to mount it on a clean, flat surface. Use appropriate hardware so the base stays flat and maintains that isolation.

Q: What type of cable lugs fit the 3/8 in post?

The post suits ring lugs with a 3/8 in hole. These lugs are common on heavier battery and starter cables. Using the correct lug size keeps contact pressure even across the stud. That helps minimise resistance and heat under higher loads.

Q: Where is this power post typically installed?

It is typically installed near batteries, fuse blocks or main bus bars. Many people mount it on wheel arches, battery trays or bulkheads in 4WDs and boats. Keeping it close to the main supply keeps cable runs shorter. A sheltered spot also helps protect the connection from direct spray and debris.