0000 Gauge Non-Insulated Butt Connectors 6 PCS 4/0 AWG Wire Butt Splice Connectors Uninsulated Crimp Wire Connectors 4/0 Ga. Tinned Copper Grade Crimp Butt Terminals with 6 PCS 3:1 Heat Shrink Tube

I don't know what all these negative reviews are about. The product I received looks to be excellent quality. The butt connectors are heavy and look to be made of thick metal. If you believe the packaging they are copper coated with some type of tin. I bought these to repair the hatch wiring harness in my 2004 golf. I tested the connectors tonight with some 18 gauge wire and a crimping tool I had previously purchased. Providing you careful strip the wires and twist the ends before inserting these connectors crimp down nicely and feel like they have a very strong grip on the wires. Time will tell of course how they hold up but from what I can see I don't imagine these wires are going anywhere. Put a little heat shrink over them afterwards and I think that's a wrap.The only issue I have with these is the quality of the case seems to be kinda flimsy but honestly I can't really complain about that considering the price point. I would def buy these again.

Cramped a damaged battery cable, worked well.

I used these to extend some 2 ga wire on my winch. They compress great with my compression tool. Easy to use.

They arrived in good condition but haven't really had a chance to use them but they look to be of good quality.

Works great, crimps very nicely with my Klein kurve stripper/crimpers

These work well on 24AWG wires. You put some shrink tube on top and looks pro!!!highly recommended.

Product looks solid and good material but It looks like it is made for like 750 mcm or bigger.

Works good.

Se ve de buena calidad y esta a buen precio

justo o que buscaba