Package includes 4 gauge 3/8" battery copper ring terminals plus 3:1 dual-wall adhesive heat shrink tubing (5 black, 5 red) for waterproof, vibration-proof sealing. The annealed copper construction with anti-corrosion tin plating ensures maximum current flow in marine, automotive, solar, and RV applications. Closed-end barrels prevent solder leakage and moisture wicking, while flared openings make wire insertion effortless. Rated for 600V and 257°F, the adhesive-lined tubing forms a rugged environmental seal far superior to standard heat shrink. Whether you're rewiring a boat battery, upgrading car audio, or building a solar array, these terminals deliver reliable, long-lasting performance. Pre-cut tubing saves time—just crimp, heat, and you're done.
☆『4 Gauge Wire Connectors Kit』Package includes 10 pcs heavy duty 4 AWG (4 gauge) battery cable lugs with 3/8" (M10) stud hole, plus 10 pcs color-coded 3:1 dual wall adhesive heat shrink tubing (5 red + 5 black) for professional, polarity-identified connections
☆『100% Pure Copper Materials』Every battery terminal connector is made from annealed electrolytic grade copper — not copper-clad aluminum — ensuring maximum conductivity and minimum resistance for high-current applications. The marine grade 3:1 heat shrink tubing is UL & CSA certified (rated 600V / 257°F), thick and durable than other 2:1 shrink tube
☆『Reliable and Easy to Use』These wire lugs with heavy duty construction improve high temperature durability and closed design seals out the moisture, ensure connection reliability; high standard flared opening for easy wire insertion. The wire shrink wraps are all pre-cut into the most common sizes, which improves your work efficiency.
☆『Wide Applications』These ring terminals are safe and reliable, great for distribution box, marine, golf carts, solar panels, home applications, etc.Heat Shrink Tubing is Ideal Used for Vehicle, Motorcycle, Boat, DIY Electrical Wirings and Other Outdoor Applications.
☆『Professional Copper Lugs』These high-quality copper terminals feature corrosion-resistant properties for solid and stranded wires. Marine-grade heat shrink tubing with heat-activated adhesive provides an impermeable seal against salt water and liquids. Available in 8, 6, 4, 2, 1/0, 2/0, 4/0 AWG with stud options (1/4", 5/16", 3/8", 1/2") — select above.