---
product_id: 364419314
title: "haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow"
brand: "haisstronica"
price: "$22.03"
currency: USD
in_stock: true
reviews_count: 13
category: "Haisstronica"
url: https://www.desertcart.us/products/364419314-haisstronica-50pcs-heat-shrink-butt-connectors-12-10-awg-yellow
store_origin: US
region: United States of America
---

# 12-10 AWG copper core for superior conductivity 3:1 heat shrink ratio for perfect seal IP67 waterproof rating for ultimate protection haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow

**Brand:** haisstronica
**Price:** $22.03
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence, Seal with Style!

## Quick Answers

- **What is this?** haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow by haisstronica
- **How much does it cost?** $22.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/364419314-haisstronica-50pcs-heat-shrink-butt-connectors-12-10-awg-yellow)

## Best For

- haisstronica enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Pack for Power Users:** 50 connectors per pack, organized and ready for frequent use in factories, workshops, or large-scale projects—never run out mid-job.
- • **Seal Like a Pro Every Time:** 3:1 adhesive-lined heat shrink tubing ensures a waterproof, durable connection that stands up to the elements.
- • **See Your Work, No Guesswork:** Translucent tubing lets you visually confirm perfect crimps, eliminating rework and boosting confidence on every splice.
- • **Certified Quality You Can Trust:** Meets ROHS, ISO 9001:2008, SGS, and CE standards—engineered for professionals who demand compliance and excellence.
- • **Built for High-Performance Projects:** Premium thick copper core rated for 12-10 AWG wires delivers reliable conductivity and safety in automotive, marine, and industrial uses.

## Overview

The haisstronica 50PCS Heat Shrink Butt Connectors (12-10 AWG) combine industrial-grade copper cores with 3:1 adhesive-lined heat shrink tubing, delivering waterproof, high-strength wire splices. Certified to global standards and rated IP67, these connectors are perfect for automotive, marine, and electrical projects requiring reliable, professional-grade performance in bulk quantities.

## Description

haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow | Splice and Seal Wire Repairs, 3:1 Adhesive-Lined Seal, Translucent Tubing for Crimp Checks, IP67 Rated: desertcart.com: Industrial & Scientific

Review: Good product performance, good value - Very good product compared to others I have bought but found would not hold a crimp. Seals nicely!
Review: Excellent Quality Connectors.. Strong, Sealed, and Reliable! - These Haisstronica blue heat shrink butt connectors are top-notch. The material feels durable, the crimp holds tight, and the heat shrink seals perfectly creating a waterproof and professional-looking connection every time. I’ve used them for automotive wiring and marine projects, and they perform great even in tough environments. The shrink tubing melts evenly with a heat gun and the adhesive inside gives a strong, secure bond. It’s also nice that they come well organized in a sturdy box with plenty of pieces for multiple projects. Great value and dependable quality, highly recommend!

## Features

- Great Value:The package includes 50PCS Yellow(12-10) heat shrink butt connectors. It is an ideal choice for factories, enterprises, schools, or stores where butt connectors are used frequently. Haisstronica waterproof wire connectors comply with ROHS, ISO 9001:2008, SGS, and CE standards
- Application Areas:Wide range of applications in areas such as automotive,watercraft, electrical,and electronics industries
- Compliant With All Relevant Standards:Haisstronica waterproof wire connectors are compliant with ROHS, ISO 9001:2008, SGS, and CE standards
- High-Quality Copper Core:Heat shrink butt connectors use a copper core with a higher thickness rating.This makes your connection project safer and better meets our customers’quality needs
- High-Quality Heat Shrink:Translucent heat shrink tubing provides high tensile strength and resistance to stretch and minimize mechanical damage.The thick barrel ensures a strong crimp every time.The inner wall of the heat-shrinkable tube has enough hot melt adhesive to ensure waterproof performance reliability.Your wire will never slip out of these heat shrink wire connectors

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09B9CZMNL |
| Best Sellers Rank | #962 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Ring Terminals |
| Brand Name | haisstronica |
| Color | Yellow |
| Connector Type | Butt Splice, Crimp |
| Contact Material | Copper |
| Customer Reviews | 4.7 out of 5 stars 227 Reviews |
| Insulation Material | Polyolefin |
| Insulation Material Type | Polyolefin |
| Manufacturer | haisstronica |
| Material | Copper |
| Material Type | Copper |
| Model | HX1231 |
| Number of Items | 50 |
| Part Number | HS-1231 |
| Specification Met | CE, RoHS |
| Temperature Rating | 257 degree fahrenheit |
| Terminal | Butt Terminal |

## Product Details

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

## Images

![haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow - Image 1](https://m.media-amazon.com/images/I/71wuAa4k6FL.jpg)
![haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow - Image 2](https://m.media-amazon.com/images/I/81F-RZrTJLL.jpg)
![haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow - Image 3](https://m.media-amazon.com/images/I/71iFuRKzuVL.jpg)
![haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow - Image 4](https://m.media-amazon.com/images/I/71iwmOTonoL.jpg)
![haisstronica 50PCS Heat Shrink Butt Connectors, 12-10 AWG, Yellow - Image 5](https://m.media-amazon.com/images/I/71VuYIGObzS.jpg)

## Available Options

This product comes in different **Color, Size, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product performance, good value
*by D***N on June 8, 2026*

Very good product compared to others I have bought but found would not hold a crimp. Seals nicely!

### ⭐⭐⭐⭐⭐ Excellent Quality Connectors.. Strong, Sealed, and Reliable!
*by C***S on October 16, 2025*

These Haisstronica blue heat shrink butt connectors are top-notch. The material feels durable, the crimp holds tight, and the heat shrink seals perfectly creating a waterproof and professional-looking connection every time. I’ve used them for automotive wiring and marine projects, and they perform great even in tough environments. The shrink tubing melts evenly with a heat gun and the adhesive inside gives a strong, secure bond. It’s also nice that they come well organized in a sturdy box with plenty of pieces for multiple projects. Great value and dependable quality, highly recommend!

### ⭐⭐⭐⭐⭐ Good easy to use product. I’ve never used this before, but I like it.
*by A***N on December 31, 2025*

Good product, used it to splice underground cables for low-voltage lights. Never used a product like this before, but it worked well, clamped well and shrunk when heated.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-25*