Ancor 22-18 Gauge - 5/16" Heat Shrink Ring Terminal - 100-Pack

The Ancor 22-18 Gauge - 5/16" Heat Shrink Ring Terminal - 100-Pack (MPN 310599) is the marine-grade electrical connector every serious boater and angler needs in their tackle box. After years on the water, you know that corrosion and loose connections are the silent killers of electronics—fishfinders, navigation systems, and bilge pumps all depend on solid, weather-sealed terminals. This bulk 100-pack ensures you're never caught without the right terminal when rewiring a console, upgrading a trolling motor, or troubleshooting a failed circuit at the dock.

Built with cross-linked polyolefin heat shrink tubing—not brittle PVC—these terminals resist the harsh UV, salt spray, and temperature swings of marine environments without cracking, shrinking, or burning under load. The 5/16" ring accommodates standard boat hardware (battery posts, ground blocks, and panel studs), while the 22-18 gauge wire range handles everything from navigation lights and switch circuits to low-amp sensor feeds. Heat activation creates a permanent, moisture-proof seal that prevents oxidation and corrosion at the crimp joint—the exact failure point that kills connections after a season or two in saltwater. Pre-insulated design eliminates exposed copper, reducing short-circuit risk in wet bilges or spray zones.

Professional installers and DIY boaters alike trust Ancor terminals for livewell systems, through-hull transducers, battery banks, and helm wiring harnesses where reliability trumps cost. The 100-pack bulk format means you'll have spares for future upgrades and repairs, saving trips to the marine chandlery. Simply strip 1/4" of insulation, crimp the terminal onto your 22-18 AWG wire using a proper crimper, then apply heat (heat gun or immersion in boiling water) to shrink the tubing and seal the joint. Compatible with any standard 5/16" stud or post fastener found on batteries, distribution blocks, or electrical panels. For boaters serious about uptime and safe electrical systems, this is the terminal to stock.