Ring Terminal 5/16 Hole Insulated 12-10 20pk

The ALLSTAR PERFORMANCE Ring Terminal 5/16 Hole Insulated 12-10 20-pack (SKU ALL 76055) is a professional-grade electrical connector designed for secure, corrosion-resistant wire termination in automotive, marine, and electrical system applications. These insulated ring terminals accept 12–10 gauge wire and feature a 5/16-inch hole diameter, making them compatible with standard bolt and stud connections found in engine bays, battery banks, and wiring harnesses.

Each terminal is constructed from tin-plated copper, which resists oxidation and maintains low contact resistance even in moisture-rich environments. The bright yellow polyvinyl chloride (PVC) insulation serves a dual purpose: it provides electrical safety by covering the metal barrel, and it allows quick visual identification of wire gauge during installation. The 5/16-inch hole size accommodates M8 bolts, studs, and lugs commonly found in automotive electrical systems, battery isolators, and distribution blocks. The 20-pack quantity ensures you have spares on hand for repairs, upgrades, or future wiring projects.

These terminals are ideal for mechanics, restoration technicians, marine electricians, and off-road enthusiasts who need reliable connectors for battery cables, alternator connections, and auxiliary wiring. The insulated design reduces the risk of accidental shorts in tight engine compartments or crowded electrical panels. Whether you're wiring a custom hot rod, upgrading a marine electrical system, or maintaining industrial equipment, this 20-pack provides a cost-effective supply of proven connectors that meet industry durability standards.