ALBO 500PCS 12-10 AWG Heat Shrink Butt Connectors - Tinned Copper 1mm - Marine Grade Insulated Crimp Wire Connectors - Waterproof Electrical Connectors - Butt Splice for Auto, Marine, Boat, Stereo

This 500-piece Yellow Heat Shrink Butt Connector Kit is designed for secure and efficient splicing of 12–10 AWG wires in automotive, marine, and home electrical projects. Each connector features a pre-insulated, adhesive-lined heat shrink sleeve that forms a waterproof and corrosion-resistant seal once heated—no need for extra tubing or tape. Built with durable copper for excellent conductivity and long-term performance, these heavy-duty crimp terminals resist vibration and abrasion, making them ideal for high-stress environments such as engine bays, boats, and outdoor equipment. Installation is quick and easy: just crimp and apply heat to create a strong, professional-grade connection in minutes. Color-coded in yellow for fast wire gauge identification, these connectors perform reliably across a wide temperature range (-55°C to 105°C / -67°F to 221°F), providing superior insulation, strain relief, and long-lasting durability. Ideal for powering accessories, connecting cables, or making repairs, this bulk set is perfect for electricians, mechanics, and DIYers alike.