"Perfect for amateurs like me! This Butt Connector Kit is foolproof. Easy instructions, top-notch connectors, and the waterproof feature? Genius. No more worries – just a reliable connection every time. A must-have for any DIY project!"

SolderStick Butt Wire Connector Kit

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Upgrade your wiring game with the SolderStick Butt Wire Connector Kit, designed for better and saferwiring setups.

This butt wire connector kit provides everything you need to make secure, waterproof connections, ensuring durability and reliability in a variety of applications.

It offers high-quality connectors that are easy to use and perfect for automotive, marine, and home electrical projects for DIY enthusiasts and professionals alike.

With the SolderStick Butt Connector Kit, you can achieve professional-grade results with confidence and ease.

Enhanced Conductivity: Heavy-duty copper core ensures a strong crimp and superior conductivity.
Waterproof Durability: Insert, crimp, heat – our kit guarantees robust, waterproof connections.
3:1 Shrink Ratio: Marine-grade connectors with a 3:1 shrink ratio for secure and waterproof seals.
Versatile Across Industries: Durable, stable, and corrosion-resistant

Product Features

Below are the features of Solderstick’s Butt Wire Connector Kit:

  • Waterproof: Ensures a secure connection that is resistant to water and moisture, ideal for marine and outdoor applications.
  • Heat Shrink Tubing: Provides a tight seal and excellent insulation after heating, enhancing the durability of the connection.
  • Solder Seal Ring: Includes a low-temperature solder ring that melts and flows, ensuring a solid and reliable connection.
  • Transparent Sleeve: Allows for visual inspection of the connection to ensure proper insertion and alignment of wires.
  • Color-Coded: Different sizes are color-coded for easy identification and selection based on wire gauge.
  • Durable Material: Made from high-quality materials that resist corrosion and wear, ensuring long-lasting performance.
  • Easy to Use: Simple and straightforward installation process that requires minimal tools and effort.
  • Wide Range of Sizes: Available in various sizes to accommodate different wire gauges and connection requirements.
  • Strong Crimp: Provides a secure crimp that holds the wires firmly in place, preventing them from coming loose.
  • Versatile Applications: Suitable for a wide range of applications, including automotive, marine, industrial, and home electrical projects.


Below are the many ways you can use the Solderstick Butt Wire Connector Kit:

  • Automotive Wiring: Ideal for connecting and repairing car electrical systems, ensuring secure and durable connections in vehicles.
  • Marine Electronics: Suitable for use in boats and other marine environments, providing waterproof and corrosion-resistant connections.
  • Home Electrical Repairs: Perfect for household electrical projects, such as fixing or extending wiring in appliances and fixtures.
  • Aerospace Wiring: Used in the aerospace industry for reliable and high-performance electrical connections in aircraft systems.
  • Industrial Equipment: Essential for maintaining and repairing electrical connections in various industrial machinery and equipment.
  • Solar Panel Systems: Used in solar installations to connect and extend solar panel wiring securely.
  • Lighting Installations: Commonly used in both indoor and outdoor lighting projects to ensure safe and dependable electrical connections.

Why Solderstick™

  • Achieve reliable, waterproof electrical connections
  • Say goodbye to unreliable connections in moisture or harsh conditions
  • Perfect for outdoor projects, marine applications, and automotive repairs
  • Simple and quick wire connections
  • Durable and long-lasting
  • Hassle-free installation, no more messy electrical tape
  • Professional-grade results

How to Use Butt Connectors

Step 1


Cut wires to size and insert into the butt connector

Step 2


Secure the connection by crimping the butt connector onto the wires tightly.

Step 3


Apply heat to shrink the tube around the connection.

Step 4


Double-check your connection

Recommended by mechanics and DIY ENTHUSIAST

"The Butt Connector Kit made my wiring projects a breeze. The waterproof feature gave me confidence, and the variety of connectors in the kit ensured I had the right one for every job. Easy to use and reliable – definitely recommend!"

"I'm not a pro at wiring, but this kit made me feel like one! The step-by-step process was straightforward, and the connectors held up perfectly. No more worries about loose wires. A must-have for anyone tackling electrical projects."

"Impressed with the tinned copper core – you can feel the quality. The heat shrink process was simple, and the connectors stayed securely in place. No more guesswork – these connectors deliver a solid, waterproof connection. Very satisfied!"

Perfect For Professional Or Emergency Use



home DIY wirings

Audio Systems

Electrical Projects


Core Material

Tinned Copper

Shrink Ratio


Kit Contents

180 pieces (30 yellow, 60 blue, 90 red butt connectors)


Corrosion-resistant, stable


Automotive, Marine, Electrical, Electronic

SolderStick Butt Wire Connector Kit

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