PN#055045 SKU#13739 Deep Adapter Box with Back Entry. 5/16″-18″ UNC cover plate studs and 2″ inside depth. Product: Sockets. Type: Seven-Way. Note: 5/16″-18″ UNC cover plate studs and 2″ inside depth. Non-corrosive, reinforced nylon housing for added durability. Designed for No. 8 ring terminals. ATA color-coded contacts. Solid brass split pins are zinc-plated for corrosion resistance. Each socket includes automatic reset circuit breakers with positive snap open/snap closed action to eliminate arcing (unless otherwise noted). Mounting holes are 4 1/2 inch on center and include steel bushings for added housing protection. Adhesive-backed mounting gasket included. Circuit breaker sockets meet SAE J560 requirements.