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

I do like that these guys have very specific ring sizes as well as (obviously) being for specific sized cables. Im a stickler for the 2-hole, 2-crimp method wherever possible, but its usually not possible outside of grounding and bonding, so these are pretty nice.

I got the 6 gauge 5/16(M8) lugs. Im using these on 4 gauge WindyNation wire. I found out that you cant match wire and lugs using gauge alone. The actual decimal diameter of a manufacturers gauge of wire varies a lot depending on the stranding, and bunching of those strands. Lug manufacturers tend to go larger with their ID to accommodate more wire designs. To get the best connection, you want the wire to fit snugly in the lug prior to crimping. If its way loose, your crimp will look bad and the connection will likely be poor. I always match the OD of the bare wire to the ID of the lug, and use gauge just as a loose reference. These lugs are about average in thickness. I measured these at .060. I have others that are .075, and I prefer that thickness. However, these are wider. That extra width allows more contact surface on my bus bars, battery terminals, etc. I think the extra width, and therefore extra contact area, is more important. The terminals fit my wire perfectly and crimp nicely. It would be nice if they came with heat shrink tubing, but theyre otherwise just about perfect. I recently also got the 1 Awg terminals and had the same great experience. The copper was thick enough, and the terminal itself was wide. These are well made terminals, and they were perfect for my needs once again.

No problem inserting the correct size awg wire and soldering the lug onto the wire. I did use flux and had no problems with adhesion. Worked just fine. With they had a size between the 1/2” and 1/4” hole. I’m sure 3/8” or 5/16” would be the most popular for the hole size. I used the larger 1/2” hole and put a stainless washer over the lug so it could be secured.

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.

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.

Just what I was looking for I used it on my zero turn lawnmower and it worked great

These make very nice finished looking wire segments when wiring in 12 volt accessories to our golf cart. I try to remember to slip on some shrink wrap before crimping for an even more finished look. I got these specifically for the large lug opening.

These are good and crimp on well. The material is stamdard and easy to use.

With a product like this, its either going to be great or absolutely horrible. I am happy to say these were great. They fit my 2/0 awg wire perfectly. You could probably solder them to the wire, but I ended up crimping it with a hydraulic crimper.

Used to hook up power cable for a winch on my equipment/car trailer. Will have to wait to see how they hold up in weather. Easier to use if you have a lug crimper but could be done with larger pliers. Filling the end with solder or dielectric grease should help to keep corrosion between contacts to a minimum. Stud size is perfect for this use.