---
product_id: 495475394
title: "340PCS Heat Shrink Butt Connectors"
brand: "sopoby"
price: "R1148"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Sopoby"
url: https://www.desertcart.co.za/products/495475394-340pcs-heat-shrink-butt-connectors
store_origin: ZA
region: South Africa
---

# Thick tinned copper barrel Double-wall waterproof seal 340PCS comprehensive kit 340PCS Heat Shrink Butt Connectors

**Brand:** sopoby
**Price:** R1148
**Availability:** ✅ In Stock

## Summary

> ⚡ Seal the deal with connections that last—waterproof, durable, and ready for any challenge!

## Quick Answers

- **What is this?** 340PCS Heat Shrink Butt Connectors by sopoby
- **How much does it cost?** R1148 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/495475394-340pcs-heat-shrink-butt-connectors)

## Best For

- sopoby enthusiasts

## Why This Product

- Trusted sopoby brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Superior Conductivity:** Seamless thick copper barrel ensures minimal voltage drop and maximum current flow.
- • **Complete Connector Arsenal:** 340 pieces covering all your wiring needs—never run out mid-project.
- • **Marine-Grade Waterproofing:** Double-wall design with hot melt adhesive locks out moisture for fail-safe connections.
- • **Versatile Application Ready:** Perfect for marine, automotive, RV, and outdoor electrical projects demanding reliability.
- • **Corrosion-Resistant Durability:** Tinned copper resists rust and guarantees long-lasting, secure crimps.

## Overview

The Sopoby 340PCS Heat Shrink Butt Connectors kit features premium tinned copper barrels with seamless construction for superior conductivity and corrosion resistance. Its double-wall heat shrink tubing with hot melt adhesive ensures waterproof, secure crimps ideal for marine, automotive, and outdoor electrical applications. Rated for up to 257°F, this comprehensive set offers versatile, durable, and reliable wire connections that minimize voltage drop and prevent short circuits.

## Description

340PCS Heat Shrink Butt Connectors, Marine Grade Electrical Wire Connectors | Tinned Red Copper Insulated Waterproof Crimp Terminals Butt Splice for Cable, Boat, Wiring: desertcart.com: Industrial & Scientific

Review: Perfect Product But No Real Voltage Rating Available - A great deal for a complete selection of sizes with large quantities of each. The work as expected, and indeed the tinned copper barrel appears seamless which helps to make the crimped connection robust. I used it with the A1 die on a ratcheting crimper which is specifically designed for heat shrink butt joint crimp connectors. I'm assuming that they didn't want to pay for a higher voltage certification with their mass market being low voltage environmentally exposed systems for automotive, marine, etc. While the heat shrink insulation appears to be the same materials as what you see on 600V certified heat shrink crimp connectors, one can't be certain so I put on an additional layer of 600V-rated heat shrink extending beyond the heat shrink sections of the butt joint just in case for my HVAC wiring application. As others have noted, the heat shrink requires more thorough heating than most, even other dual wall products, but you can see when it has sealed through the transparent insulation.
Review: Good choice - Good price

## Features

- PREMIUM COPPER CORE: Heat Shrink Butt Connectors features a thick tinned copper barrel which ensures strong secure crimping every time. Thick copper barrel provides minimal voltage drop, high current flow and less heat. These will prevent short circuits and and make your connection projects safer and better
- BETTER WATERPROOF SOLUTIONS: Double wall design, Hot Melt Adhesive inside ensures wires strongly connected and prevent wires slipping from the terminal; Polyolefin outside tubing provides insulation and improves pullout strength
- DURABILITY: Each connector with a thick tinned copper barrel that resists corrosion to hold the wire tight when crimped. The barrel is created from one seamless piece of copper that eliminates the problem of the barrel opening. Your wire will never slip out of the connector
- EXCELLENT WIRE CONTACT: The copper barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime
- WIDE APPLICATIONS: Excellent stability, water resistance and electrical conductivity provide durable connection for motorcycle, off-road vehicles, lawn tractors, RVs, fish finder and marine application. Widely used on multiple projects of your Christmas lights, ships with high waterproof requirements motorcycle stereo, boat electronics, equipment switches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BHVDM612 |
| Best Sellers Rank | #36,924 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #218 in Butt Terminals |
| Brand Name | Sopoby |
| Color | Red, Blue, Yellow, Green |
| Connector Type | Butt Splice |
| Contact Material | Copper |
| Customer Reviews | 4.7 out of 5 stars 914 Reviews |
| Insulation Material | Polyolefin |
| Insulation Material Type | Polyolefin |
| Item Highlight | Tinned Red Copper Insulated Waterproof Crimp Terminals Butt Splice for Cable, Boat, Wiring |
| Manufacturer | Sopoby |
| Material | Copper |
| Material Type | Copper |
| Number of Items | 340 |
| Part Number | Amazon-Sop-1112US |
| Temperature Rating | 257 degree fahrenheit |
| Terminal | Butt Terminal |
| Unit Count | 1 Count |

## Product Details

- **Color:** Red, Blue, Yellow, Green
- **Connector Type:** Butt Splice
- **Contact Material:** Copper
- **Insulation Material:** Polyolefin
- **Terminal:** Butt Terminal

## Images

![340PCS Heat Shrink Butt Connectors - Image 1](https://m.media-amazon.com/images/I/81V8OTXeSSL.jpg)
![340PCS Heat Shrink Butt Connectors - Image 2](https://m.media-amazon.com/images/I/71ht9tGwwPL.jpg)
![340PCS Heat Shrink Butt Connectors - Image 3](https://m.media-amazon.com/images/I/61Xx9PNyz6L.jpg)
![340PCS Heat Shrink Butt Connectors - Image 4](https://m.media-amazon.com/images/I/717u7A29bAL.jpg)
![340PCS Heat Shrink Butt Connectors - Image 5](https://m.media-amazon.com/images/I/71bfVrnOSiL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Product But No Real Voltage Rating Available
*by P***R on June 11, 2026*

A great deal for a complete selection of sizes with large quantities of each. The work as expected, and indeed the tinned copper barrel appears seamless which helps to make the crimped connection robust. I used it with the A1 die on a ratcheting crimper which is specifically designed for heat shrink butt joint crimp connectors. I'm assuming that they didn't want to pay for a higher voltage certification with their mass market being low voltage environmentally exposed systems for automotive, marine, etc. While the heat shrink insulation appears to be the same materials as what you see on 600V certified heat shrink crimp connectors, one can't be certain so I put on an additional layer of 600V-rated heat shrink extending beyond the heat shrink sections of the butt joint just in case for my HVAC wiring application. As others have noted, the heat shrink requires more thorough heating than most, even other dual wall products, but you can see when it has sealed through the transparent insulation.

### ⭐⭐⭐⭐⭐ Good choice
*by D***T on May 18, 2026*

Good price

### ⭐⭐⭐⭐⭐ Great value and work like a charm. Much easier a cleaner install
*by R***T on August 24, 2026*

Just used some of these for the first time. I had to do a pair of wire splices inside the crankcase cover of a Yamaha Vstar 650 while it was still attached to the bikes electrical system by a bundle of wires running up through the frame!! Two tiny 22-gauge wires (ground & power) from a new pick-up coil to the ignition ignitor that I was splicing into the existing wires in that bundle. I've got big hands working in a small 2-3" space and I used 2 heat-shrink butt splices to do it. These have the solder that melts under a heat gun, and I've never tried these before, but I wanted a tight water and oil proof connection. They worked PERFECTLY and each splice took no more than 1-2 minutes and maybe 20 seconds with a heat gun. No crimping needed, 110 pieces of different sizes all color coded, excellent value if you do a lot of this type of splice and look to be capable of lasting the life of the pick-up coil.

## Frequently Bought Together

- 340PCS Heat Shrink Butt Connectors, Sopoby Marine Grade Electrical Wire Connectors Kit, Tinned Red Copper Insulated Waterproof Crimp Terminals Butt Splice for Cable,Boat,Wiring
- Plustool Crimping Tool for Heat Shrink Connectors AWG22-10, Ratcheting Wire Terminal Crimper - Crimping Pliers - Electrical Crimping Tool
- Kuject 320PCS Heat Shrink Wire Connectors Kit, Electrical Waterproof Crimp Butt Terminals, Insulated Spade Connectors for Automotive Marine Boat Truck, Include Rings Forks Spade Butt Splices

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**Shop now:** [https://www.desertcart.co.za/products/495475394-340pcs-heat-shrink-butt-connectors](https://www.desertcart.co.za/products/495475394-340pcs-heat-shrink-butt-connectors)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-09-15*