SVAAR 10PCS 4 Gauge Butt Connectors 4 AWG Non-Insulated Crimp Butt Splice Connectors,Tinned Copper Seamless Barrel Uninsulated Splice Terminals for 4 Ga. Wire Repair W/10 3:1 Adhesive Heat Shrink Tube - size: 4 AWG

About this item

• Package Includes - 10 PCS 4 Gauge Heavy Duty Crimp Butt Connectors, fully tin-coated marine-grade butt splice terminals engineered with superior corrosion resistance. Rated for 600 Volts, they fit both solid and stranded wires perfectly. Comes with 10PCS 3:1 dual wall adhesive heat shrink tubes (5 black, 5 red) to form a tight waterproof seal blocking moisture and salt spray against rust. Supports crimp or solder installation. Crimping provides vibration-resistant mechanical stability, while soldering boosts joint strength and conductivity for long-term anti-corrosion performance.
• Safer Construction & Reliable Performance - Our non-insulated butt splice terminals fully comply with UL486 standards. Made of thickened copper material, they deliver ultra-tight crimping and effectively stop wires from slipping loose. The central wire stop wall ensures consistent compression, avoiding poor contact and overheating during high-current operation.
• Matte Tinned Pure Copper Build - Non Insulated Butt Splice Connectors from SVAAR are precisely made of seamless high-conductivity pure copper tubing. Superior to common alloy materials, pure copper boasts outstanding conductivity to support maximum current flow and efficient power transmission, keeping electrical connections working at peak efficiency. It performs far better than aluminum alloy and brass wire connectors, forming stable high-performance links between power sources and cables for dependable power delivery.
• 100% Annealed Electrolytic-Grade Copper Construction - SVAAR non-insulated butt splice connectors are forged from 100% annealed electrolytic-grade copper. Each terminal undergoes professional high-temperature annealing processing to boost material ductility and toughness. This refined material property enables smoother, firmer crimping while efficiently stopping cracks and structural damage under heavy crimp pressure.
• CHAMFERED BARREL & WIRE STOP - SVAAR Non-Insulated Butt Splice Connectors adopt deburred and chamfered barrel design for safe wiring installation, effectively avoiding wire fraying during assembly. Smooth chamfered ends allow quick and easy wire insertion from both sides, while the built-in wire stop ensures accurate wire positioning. Perfect for custom wire harness making and wiring repair work, they are simple to install and easy to maintain, offering higher safety, stable power output and better overall performance.
• HEAVY DUTY SEAMLESS TUBULAR-STRONG CRIMPS – Non-Insulated Butt Splice Connectors are made of 99.9% high-conductivity ETP pure copper with seamless structure. One-piece design ensures better conductivity and crimp performance than traditional seamed and brazed connectors. Heavy-duty seamless wire splices perfectly built for high-amperage use. Thick, seamless pure copper barrels ensure maximum conductivity and ultra-strong crimps—they won’t split during crimping, delivering rock-solid connections that prevent wire pull-out. These butt splice connectors guarantee consistently strong, long-lasting, and high-performance electrical connections between wires every time.
• RECOMMEND HEAT SHRINK TUBING - Non Insulated Butt Splice wire connectors ensure connections get the strongest, longest lasting, and highest performing electrical connections between every wire, every time. For best results we recommend insulating your connections with dual wall, adhesive lined heat shrink tubing.
• HOW TO CHOOSE AND USE - SVAAR Non-Insulated butt splice connectors kit give you the flexibility to select from a wide range of wire sizes to match your requirements and applications. When crimping, choose the right butt connectors that fit the wire gauge. Note that some cable manufacturers oversize their cable gauges (this is especially common with audio cables), which may prevent a direct fit. We recommend checking the product dimensions to ensure the connectors fit properly before purchasing. Besides, choose the proper crimping pliers. Improper pliers cause loose or damaged crimps, affecting fitting stability.
• WIDE APPLICATIONS - Copper butt connectors are used to mate, connect, or terminate single or multiple wires. Commonly applied in vehicle systems—including automotive and marine applications—they’re also suitable for various electrical setups requiring wire connections. These butt splices terminals are sized for stranded or flexibly stranded copper wire and cable, but are not rated for aluminum conductors.
• BUYER CONFIDENCE - Always match the size and gauge of terminals, cables, and lugs to ensure a proper fit. It’s important to use these connectors with compatible copper cables. We recommend double-checking the dimensions to confirm accuracy before purchasing—this ensures your connections are secure and long-lasting. If you encounter any issues, we stand ready to resolve them for you. Everything you need to get started is included here.

Overview

• Color: Tinned Copper
• Connector Type: Crimp Butt Splice, Non-insulated Crimp Butt Connectors, Non-insulated Tinned Copper Compression Splice, Seamless Barrel Butt Splice Crimp Butt Splice, Non-insulated Crimp Butt Connectors, Non-insulated Tinned Copper Compression Splice, Seamless Barrel Butt Splice
• Contact Material: Purple Copper Matte Tin Plating
• Insulation Material: Non-Insulated Crimp Butt Connectors with 3:1 Adhesive-Lined Dual-Wall Heat Shrink Tubes for Sealing & Insulation Non-Insulated Crimp Butt Connectors with 3:1 Adhesive-Lined Dual-Wall Heat Shrink Tubes for Sealing & Insulation
• Terminal: Butt Splice Connector