







⚡ Power your projects with copper confidence — don’t get left unplugged!
The SELTERM 25pcs 4 AWG 3/8" Stud Battery Lugs are premium bare copper ring terminals designed for high conductivity and durability. Rated for 600 volts and 221°C, these UL-listed, heavy-duty connectors deliver reliable, corrosion-resistant performance across automotive, solar, marine, and industrial applications. With precision sizing and OEM-approved construction, they ensure secure, long-lasting electrical connections that professionals trust.

































| ASIN | B073CJV1WK |
| Best Sellers Rank | #1,284 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Ring Terminals |
| Brand | SELTERM |
| Color | Bare Copper Lugs |
| Connector Type | Crimp, Ring |
| Contact Material | Copper |
| Date First Available | March 14, 2017 |
| Insulation Material | Non-Insulated |
| Item Weight | 6.4 ounces |
| Item model number | MDS0438U |
| Manufacturer | SELTERM |
| Material | Copper |
| Maximum Voltage | 600 Volts (DC) |
| Number of Items | 25 |
| Product Dimensions | 5 x 5 x 2 inches |
| Temperature Rating | 221 degree celsius |
| Terminal | Ring Terminal |
| UPC | 810038970592 |
| Unit Count | 25 Count |
B**L
Good value in a reliable part
Reviewing: SELTERM 10pcs - 6 Awg 1/4" Stud (Wide) - Battery Lugs - Ring Terminal Connectors with 12pcs 3:1 Black & Red Heat Shrink Tubing with Adhesive, Heavy Duty Battery Cable Ends I have purchased this brand before in different sizes, and they worked particularly well in my hydraulic cable crimper. I dislike wasting time repairing faulty electrical connections when I just need a piece of equipment to work, and a properly crimped and sealed connection is my best insurance against such disappointment. Pros: The terminals are nice, thick, malleable copper. They are made in India, which can be hit or miss for metallurgy. These can be bent and bent back a few times without hardening and snapping off. The heat shrink tubing is the thick kind, with the adhesive sealant inside. If you choose to use these in soldered applications, the metal tins relatively easily. The flared ends make inserting stranded wires a breeze without ‘stray hairs’ poking out the sides. These are about as good a value as anyone’s likely to see in smaller quantities. Cons: you can see a little variation from one part to another, but the holes are all of consistent diameter and they all crimp down the same in the end.
D**.
For Solar
For my solar setup. Quality parts Fair price
N**2
Copper
Good👍🏻
K**R
Battery terminals
They work out perfectly they are ideal for everything that I do especially during my installation and car audio I haven't had any problems with them they are great products real secure and great for the price recommend them highly what recommend if they should send heat shrink with it would be a lot better
C**D
Ok
Works ok but wish the surface area of the actual connection had more material
S**M
Great value, high quality, but don't forget order heat shrink!
Bought these to wire up some compressors and audio for my truck. Nice, high quality, solid copper ring terminals. If your buying these, plan on buying a crimp tool if you don't have one. I have a hammer one I use to lock the wire in. Also, they do not come with heat shrink ( not they claim they do, so its not a negative ), so be sure and order some so you can make a nice pretty connection.
R**N
High quality delivered fast
Needed these for an RV lithium battery upgrade. High quality delivered fast.
B**.
Good quality
High quality, heavy duty copper terminals. Wound buy again. Quick delivery.
E**N
They are a little bigger than I really needed but that is far better than being too small and nothing that some solder couldn't fix.
L**S
Great
A**R
good quality product , shrink wrap sleeves would be a nice touch to include with this product
K**E
Great size and use it for thicker gauge Wires. Recommend it. Fast shipping and great customer service.
A**R
Exactly what I thought Solid battery connector
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