10mm (3/8") Negative Insulated Power Junction Stud – Black 

Heavy-Duty High-Current DC Ground Terminal Post for Marine & 4WD Systems

Consolidate high-amp ground returns and streamline your 12V and 24V DC wiring with the 10mm (3/8") Black Insulated Power Junction Stud (BLA Part #172902). Designed for marine, 4WD touring, caravan, and automotive applications, this heavy-duty terminal post provides a secure, central grounding point for connecting large-gauge battery cables, chassis earth feeds, or extending negative power leads.

Built with a high-tensile stainless steel stud and a glass-filled nylon insulated base, it delivers exceptional mechanical strength, chemical resistance, and dielectric insulation. The black base allows for immediate negative polarity identification, while surface-mount screw holes allow for clean, rigid installation on bulkheads, battery boxes, or canopy walls.

Key Features

• 10mm (3/8") Stainless Steel Stud: Accommodates large heavy-duty cable lug sizes (#3/8 / M10 ring terminals) for high-amp negative ground connections.

• Black Polarity Identification: Industry-standard color coding prevents accidental reverse-polarity wiring during setup or maintenance.

• Heavy-Duty Construction: Glass-fiber reinforced nylon base provides superior strength, flame retardancy, and durability against oil, fuel, and heat.

• Surface-Mount Flexibility: Pre-drilled mounting holes allow for quick, secure mounting onto flat surfaces, panels, or custom battery boxes.

• Corrosion-Resistant Hardware: Stainless steel stud, nuts, and washers defend against rust, salt-air oxidation, and harsh marine environments.

Technical Specifications

Applications

• Consolidating central ground returns and negative battery feeds

• Joining or extending heavy-gauge negative battery cables

• Common negative grounding points in 4WD dual-battery setups

• Caravan, camper trailer, and marine switchboard power distribution