why do you crimp the connector 3x? One for each wire, what is the 3rd?

I’m not sure why you have to crimp 3x’s unless their tool is designed that way? I only crimped twice in my engine compartment of my pickup and have had no issues.

Will these work for 10/2 wire at 230V and 20 amps?

You should be able to use on 230 volt 20 amp. The yellow should handle 30 amp minimum. Usually if the wires fit in it. It will work

Do you have the Butt connectors that are 12-10 on one end and 16-14 on the other

No, they are the same on each end. The colors indicate the size, as well they are labeled.

Can these be submerged? I want to use them for a bilge pump.

Yes you can, the discription of the product says they are Marine Grade Waterproof Wire Connectors.

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But Connectors

Product ID: 266441876

Details

Colour
Red blue white
Connector type
Crimp
Contact material
Copper
Insulation material
Polyolefin
Terminal
Butt Terminal

💧Waterproof with hot melt adhesive seal

🔥Heat shrink tubing with 3:1 shrink ratio

🔧330PCS assorted sizes/colors

RM404

Duties & taxes included

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Description

⚡ Seal the deal with every splice — connect like a pro!

PREMIUM COPPER CORE - Thick copper core ensures superior conductivity and long-lasting, safe electrical connections.
VERSATILE DURABLE - Perfect for automotive, marine, home, and industrial projects with high tensile strength and stretch resistance.
COMPLETE CONNECTOR KIT - 330 pieces covering AWG 22-10 in 4 vibrant colors for quick, precise wire matching.
ADVANCED HEAT SHRINK TECH - 3:1 shrink ratio tubing with hot melt adhesive guarantees a waterproof, flame-retardant seal every time.
STANDARDS APPROVED QUALITY - Certified ROHS, ISO 9001, SGS, and CE compliant for professional-grade reliability.

The Haisstronica 330PCS Heat Shrink Butt Connectors kit offers a comprehensive, color-coded assortment of insulated crimp connectors designed for AWG 22-10 wires. Featuring a high-quality copper core and translucent polyolefin heat shrink tubing with a 3:1 shrink ratio, these connectors provide waterproof, flame-retardant, and mechanically robust splices. Certified to meet ROHS, ISO 9001, SGS, and CE standards, this kit is ideal for automotive, marine, electrical, and DIY projects requiring reliable, professional-grade wire connections.

Specifications

ASIN	B07Q3JJRY8
Brand Name	haisstronica
Color	Red,blue,yellow,white
Colour	Red,blue,yellow,white
Connector Gender	Male
Connector Type	Crimp
Connector type	Crimp
Contact Material	Copper
Contact material	Copper
Customer Reviews	4.8 out of 5 stars 4,817 Reviews
Insulation Material Type	Polyolefin
Insulation material	Polyolefin
Item Dimensions L x W x H	20L x 20W x 20H millimeters
Manufacturer	haisstronica
Material	Copper
Material Type	Copper
Model	HS
Number of Items	330
Part Number	HX1045
Specification Met	CE
Temperature Rating	257 degree fahrenheit
Terminal	Butt Terminal
UPC	192687298006
Unit Count	330 Count

Reviews

R**O

Buen producto

Todo es correcto

24.01.2025

S**T

👍

Gute Qualität

11.06.2026

J**L

plutôt pour des gros fils

Il vaut mieux bien insister pour sertir sinon ça ne tient pas.

1.08.2025

M**.

Better than expected

Really appreciate the results, seems solid and shrink around the wire perfectly

21.08.2024

K**M

GOOD DEAL

WORKS GREAT

25.07.2026

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RM404

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Malaysia.

Secure transaction

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Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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