What is the length of the connectors?

There is little difference in length from the smallest to the largest. The smallest diameter is approx 1.5mm or 5/8" in length. The largest diameter is approx 2.2mm or 7/8" in length.

Are these connectors UL rated for solid copper wire or just stranded wire?

These butt terminals can be used with both solid and stranded wires. UL rating is pending, we are expecting in get the UL approval in the upcoming months.

Do you have connections for copper to al. ..

At the moment we offer only copper connectors.

What is the best crimper tool for this heavy gauge connector?

Thank you for your question. The best tool is a crimper for non-insulated terminals. This tool is included in our 5pcs and 8 pcs crimping tool set (Die B). You might also want to have a look at our Crimping Tool for Quick Change Crimping Dies and choose the needed die from the catalog. This will work best for you if you don't need a set of tools and only interested in a crimper for non-insulated terminals.

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Wirefy 100 PCS Non Insulated Butt Connectors Kit - Butt Splice Connectors - Uninsulated Crimp Wire Connectors - 24-8 AWG

Wirefy 100 PCS Non Insulated Butt Connectors Kit - Butt Splice Connectors - Uninsulated Crimp Wire Connectors - 24-8 AWG

Product ID: 223199138

Details

Color
Silver
Connector Type
Crimp
Contact Material
Copper
Insulation Material
Non-Insulated
Terminal
Butt Terminal

⚡Pure copper for max conductivity

📏Fits 24-8 AWG wire sizes

🔧Thick seamless barrels for strong crimps

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Description

⚡ Crimp like a pro, connect for life!

UNBREAKABLE CRIMPS - Thick, seamless barrels lock wires in place—no slip, no fail.
SUPERIOR CONDUCTIVITY - Pure copper core with tin plating ensures corrosion-resistant, efficient power flow.
VERSATILE GAUGE RANGE - Covers 24 to 8 AWG wires, perfect for any professional project.
PRO RECOMMENDED PAIRING - Best results with heat shrink tubing for durable, insulated connections.
LIFETIME QUALITY GUARANTEE - Backed by Wirefy’s lifetime warranty—confidence in every crimp.

Wirefy’s 100-piece non-insulated butt connector kit offers premium copper connectors designed for 24-8 AWG wires. Featuring thick seamless barrels for ultra-strong crimps and tin plating for corrosion resistance, this kit delivers reliable, high-conductivity connections. Ideal for professional-grade electrical projects, it’s backed by a lifetime warranty and optimized for use with heat shrink tubing to ensure lasting performance.

Specifications

ASIN	B08BYY3KDB
Best Sellers Rank	#21,511 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #146 in Butt Terminals
Brand Name	Wirefy
Color	Silver
Connector Gender	Male
Connector Type	Crimp
Contact Material	Copper
Customer Reviews	4.7 4.7 out of 5 stars (1,297)
Gauge	24-8 Gauge
Insulation Material Type	Non-Insulated
Item Dimensions L x W x H	4.1"L x 2.6"W x 0.8"H
Manufacturer	Wirefy
Material Type	Copper
Maximum Voltage	600 Volts
Model	BN-100
Number of Items	100
Part Number	BN-100
Specification Met	RoHS
Temperature Rating	Up to 300 F
Terminal	Butt Terminal
UPC	857409007778
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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The product exactly matches the description. Very satisfied with my purchase.

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¥4017

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In stock

Sold byAmazon JapanDelivered 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 Japan.

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TrustScore 4.5 | 7,300+ reviews

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