[5pcs] 4 Awg - 3/8 Stud, Copper Wire Lug, Ring Terminal, Battery Cable End, Cable Lug, Wire Connector by KeeRoarin

Get er done! Heavy duty battery cable ends. Made of Copper ready to install

Made of solid copper ! Nice, good size hole to fit different sizes fittings! But not made of ground welding wires.

These KeeRoarin copper wire lugs are actually copper all the way through unlike many which when crimping on you realize are copper coated. These are excellent quality lugs and I have installed a few on some electrical battery connection cables that needed to be remade. Excellent quality product but be sure you have the correct crimp tool for creating a solid connection.

I have a decent sized solar setup and I am constantly upgrading or changing things around. I go through a fair amount of terminals, mainly in setting up the connections between the various battery banks and the inverter. These lugs are copper, fit perfectly, crimp and solder easily. Exactly what I wanted. 5 stars for matching description exactly. Note: I have been an Amazon customer for almost 20 years. I write all of my reviews to reflect my personal observations and opinions on a product. It matters not if I have purchased the item myself or if it was provided to me for review. My goal is to provide other potential customers as much real-world knowledge as possible to make an informed decision. In most cases I will return to my review in 6 months or less to see if I should alter my original observations. In no case will the cost of a product influence my opinions at all. In addition, I will try to include multiple images and or videos on each product, if practical.

Worked perfectly along with a hydraulic crimper for making new battery cables. Thick copper, flared opening to make getting the wire in easier, good quality.

Good for the price

These terminals have really come in handy with a welding machine rebuild that I’ve been working on. They went on the cables easily and are very durable. Would recommend these

Great - Solid copper accurate sizing The foot of the terminal where you mount the lug is about 2mm thick and will mount without bending too much on its own. Flared receptacle end, crimps easily

Ive purchased several copper lugs for heavy duty solar wiring. These seem as good any of those. I go the 0 AWG size, and the cable fits easily but snuggly into the lug--thanks to the flared end of them. And it is easy to crimp.

I ordered the 4AWG 5/16 terminals and when I first received them I thought I had the wrong gauge. They appear much larger than some other existing 4awg terminals I have. Upon further inspection, I think theyre actually better quality. Using a micrometer, I measured the same internal diameter as my others (about 7.5mm), and this one is actually a little more round. I think 2 things make it look larger. The first is it has a flared end where the wire goes in, and the second is that it fully encloses the wire. The flared end is is good to help you insert the wire, but on the other hand it could be harder to crimp flush with your wire. This terminal is also thicker than my others (2mm). Additionally, when the wire is fully inserted, it will not stick out the other side as theres no opening opposite the entry; it is fully enclosed. Overall, this seems to be a good quality terminal.