Best Crimp Butt Terminals in 2026

✔ HIGH QUAILTY COPPER CORE: Core Heat shrink butt connectors use the copper core with high thickness, which is up to 0. 8mm. Make connection project safer! High thickness copper core calls the attention of buyers!

✔HIGH QUALITY HEAT SHRINK: Translucent heat shrink tubing provides high tensile strength and resistance to stretch and mechanical damage. Thick barrel ensures strong crimp every time. The inner wall of heat-shrinkable tube has enough hot melt adhesive to ensure waterproof performance. Your wire will never slip out of these heat shrink butt connectors.

APPLICATION AREAS-Application in areas such as automotive, watercraft, electrical and electronics industries, with 3 different sizes, So that repair work is much easier

Tinned Copper Core: Butt connectors use a heavy-duty copper core, strong crimp, higher conductivity.

Package Includes: 100 Blue heat shrink butt connectors that can be used on wire AWG from 16 to 14.

Solderless Crimping: Insert the wires to be connected, crimp both sides with crimping pliers, and then heat with a heat gun.

Waterproof Heat Shrink Connectors: 3:1 Shrinking ratio dual-wall Heat Shrink Tube and Inside hot melt glue to provide a fully secure seal, wire corrosion. It's flame-retardant, waterproof, and can be used underground

Premium Copper Core: Heat shrink butt connectors use seamless and high thickness copper tubular, it makes connection project safer! Fix the wire firmly, increase current flow, and decrease voltage drop

High Quality: Our heat shrink butt connectors are compliant with ROHS, ISO 9001: 2008, SGS, CE, and UL standards

Premium Materials - Our heat shrink butt connectors have a high-quality copper tubular, which ensures increased current flow, and less voltage drop, thus preventing wiring failures and reducing equipment downtime. Also, the thick tubular of butt connectors ensures strong crimp every time - your wire will never slip out of the connector

Durability - Translucent heat shrink tubing provides high tensile strength and resistance to stretch and mechanical damage. Dual-walled tubing ensures waterproof seal and prevents wire corrosion. The inner wall of the waterproof heat shrink tube has enough hot melt adhesive to ensure waterproof performance

Waterproof - Designed with polyolefin outside and hot melt inside provides excellent waterproof property. When heating, the polyolefin tubing reduces in size and adhesive flows inside the insulation. The butt connectors heat shrink comply with all relevant standards, Shrinking ratio: 3:1

Premium Materials - The heat shrink butt connectors have a high-quality copper tubular, which ensures increased current flow, and less voltage drop, thus preventing wiring failures and reducing equipment downtime. Also, the thick tubular of butt connectors ensures strong crimp every time - your wire will never slip out of the connector

Durability - Translucent heat shrink tubing provides high tensile strength and resistance to stretch and mechanical damage. Dual-walled tubing ensures waterproof seal and prevents wire corrosion. The inner wall of the waterproof heat shrink tube has enough hot melt adhesive to ensure waterproof performance

Waterproof - Designed with polyolefin outside and hot melt inside provides excellent waterproof property. When heating, the polyolefin tubing reduces in size and adhesive flows inside the insulation. The butt connectors heat shrink comply with all relevant standards, Shrinking ratio: 3:1

Package Includes: 200Pcs blue heat shrink wire connectors for 16 to 14 AWG wire.

Tinned Copper Core: Butt connectors heat shrink use a heavy-duty copper core, strong crimp, higher conductivity.

Waterproof Durable: Insert the wires to be connected, crimp both sides with crimping pliers, and then heat with a heat gun, wire connectors are very strong.

Good Material: Made of T2 copper tubular, electro-Tin Plated for Corrosion Resistance

Features: Electrical splicing non-insulated butt splice connectors are built with a wire stop barrier on center, ensures the effect of compression

Performance good: Easy to connect with electrical wire and strengthen its reliability and safety

What you get: 150pcs 22-16 AWG non insulated butt connectors, 120pcs 16-14 AWG non insulated butt connectors, and 30pcs 12-10 AWG non insulated butt connectors.

Material: The wire butt connectors are made from high-quality copper tubular with tinned surface for corrosion protection.

Easy to use: The uninsulated butt connectors are great for non-bulky splices, simplify the process of electrical splicing.

VARIETY OF TYPES - This kit includes the most common terminal types: ring, fork, spade,butt connectors. Each connector type in 3 industry standard sizes: red (22-16 AWG), blue (16-14 AWG) and yellow (12-10 AWG).

COLOR CODING - Gauge sizes run from 22 gauge to 10 gauge with the heat shrink connectors color following the industry standard wire range. All of the colors are translucent, which allows them to quickly be distinguished from non-heat-shrink insulated wire connectors.

ADHESIVE INSIDE - Heat-shrink electrical connectors have insulation that shrinks when heat is applied, shrinkage ratio 3：1 . Adhesive inside the insulation that seals tightly against the wire to help to make the connection firmly, which in turn helps prevent corrosion.

The terminal is rolled and Non-Insulated.

Ideal for non bulky splices, make splicing simple.

Package Included: 20 x 12-10 AWG, 90 x 16-14 AWG , 90 x 22-16 AWG

Crimp-type design

75 per pack

Vinyl-insulated butt Splice

【DURABLITY】 - The barrel is created from one seamless piece of copper that eliminates the problem of the barrel opening. Translucent heat shrink tubing provides high tensile strength as well as resistance to stretch and mechanical damage.

【PREMIUM COPPER】 - Copper barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime. Thick barrel ensures strong crimp every time - your wire will never slip out of the connector.

【WATERPROOF】 - Polyolefin tubing on the outside and hot melt adhesive inside provides excellent waterproof property. Polyolefin tubing reduces in size and adhesive flows inside the insulation when heating. Dual-walled tubing ensures waterproof seal and prevents wire corrosion, can be ideal used whether you are working on your boat, vehicle, home or scientific projects.

Easy-Entry Wire Terminals: The wire splicers connectors is a very quick and reliable method, which connect additional cables to existing wiring. No need to strip the wire, ideal for complex circuits

18-14 AWG: The blue quick splice connectors are for 18-14 AWG (0.75-2.5mm²),100pcs

How to Use: Just slide the connector over the existing cable, add a new wire, squeeze with a pair of pliers, and then click the flap shut. Quick installation without striping wire

【Seamless Tube Design】 With a polyolefin adhesive glue in each heat shrink butt connectors, all butt connectors can be completely sealed against air,water, moisture and other external damages after you crimp onto the wire ends and heat the terminal.

【Quality Ensurance】Made of high quality thick tinned copper and polyolefin, These heat shrink wire connectors can creat a strong and tight wire connection as well as a safer environment to ensure the current flow high and the heat less.

【Safety Assurance】 We attach great importance to safety of each customer, so we ensure our these crimp connectors meet the standards of SGS, CE, RoHS, ISO9001. You can use these qualitied butt connectors without any concern. Additionally, Every heat shrink connector is made of translucent polyolefin tubing, which provides a clear persective for inspection and prevents wire corrosion.

18-14 AWG: The blue quick splice connectors are for 18-14 AWG (0.75-2.5mm²) wires,100 pcs

Wire Splice Connecors: The snap lock wire connector is a very quick and reliable method to join 2 lengths of wire together or tap into existing line. No need to strip the wire, ideal for complex circuits.

Just Insert Wires and Snap Shut: Solid, Permanent Connection without Solder. Fast and easy way to splice an electrical circuit into an existing wire.

♥ PREMIUM COPPER CORE AND HEAT SHRINK TUBE: Made of high quality tinned copper and adhesive lined heat shrink tubing. These professoinal butt connectors ensure protection against the elements. Heat shrink tubing provides high tensile strength and resistance to stretch and mechanical damage, high thickness copper core ensure protection against the elements.

♥ STRONG CRIMPS - These butt connectors use thick, seamless copper barrels. Your wire will not pull out of these butt splices when crimping.

♥ EXCELLENT WIRE CONTACT - The copper barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime.

【Excellent Conductivity and Durability】The non insulated wire connectors are tinned and thickened that will be corrosion-resistant and anti-aging.The butt terminals are made of high quality red copper and ensure good conductivity.

【Stable Connection】Electrical splicing non-insulated butt splice connectors are built with a wire stop barrier. That is not only easy cable insertion, but also provides a fully connected and reliable.on center, ensures the effect of compression.

【Package Included】100pcs 16-14 AWG non insulated butt connectors kit in the package. That is easy to operate and can meet your daily need.

♥ PREMIUM COPPER CORE AND HEAT SHRINK TUBE: Made of high quality tinned copper and adhesive lined heat shrink tubing. These professoinal butt connectors ensure protection against the elements. Heat shrink tubing provides high tensile strength and resistance to stretch and mechanical damage, high thickness copper core ensure protection against the elements.

♥ STRONG CRIMPS - These butt connectors use thick, seamless copper barrels. Your wire will not pull out of these butt splices when crimping.

♥ EXCELLENT WIRE CONTACT - The copper barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime.

✅ COPPER BARREL and Heat Shrink Tubing with Low Temp Hot Melt Adhesive.

✅ WATERPROOF AND STRETCH RESISTANT：Butt connectors with heat activated adhesive protect against corrosion and vibration，Resistant to high tensile strength.

✅ EASY IDENTIFICATION: With four different colors (white,red, blue, yellow) as well as a detailed chart for easy identification or for different purposes of use.

MARINE GRADE BUTT CONNECTORS - Crafted from high quality tinned copper and adhesive lined heat shrink tubing. These professoinal butt connectors ensure protection against the elements.

STRONG CRIMPS - These butt connectors use thick, seamless copper barrels. Once crimped, your wire will not pull out of these butt splices.

EASY TO USE - Just make a crimp and apply heat. These wire connectors require less heat to recover, and will form an airtight seal.

QUICK DISCONNECTS - Male/female spade connectors can be easily mated and pulled apart. They are convenient for applications that require frequent connections.

PROFESSIONAL SPADE CONNECTORS - Our spade connectors are crafted from high quality copper, as well as heat shrink tubing with adhesive lining. These terminals crimp, shrink, and seal well.

STRONG CRIMPS - Double barrels designed to ensure stronger crimps. Heat shrink tubing adhesive glues to the wire insulation for enhanced tensile strength. Your wire will not slip out.

QUICK DISCONNECTS - Male/female spade connectors can be easily mated and pulled apart. They are convenient for applications that require frequent connections. Female spade connectors work great for bus bar and fuse box installations.

PROFESSIONAL SPADE CONNECTORS - Our spade connectors are crafted from high quality copper, as well as heat shrink tubing with adhesive lining. These terminals crimp, shrink, and seal well.

STRONG CRIMPS - Double barrels designed to ensure stronger crimps. Heat shrink tubing adhesive glues to the wire insulation for enhanced tensile strength. Your wire will not slip out.