We needed something for a batch of panel builds where the standard nylon-insulated terminals just add bulk in tight spots, and these bare copper rings fit the bill for that—cold-pressed from solid copper, not stamped from some thin sheet you'd worry about cracking under the screw.

The UL mark on these is what actually pushed the order through, because our QC keeps flagging non-certified terminals in incoming inspections and it's a headache to swap them out after assembly, so having that on file saves us a round of documentation.

Sizes run form #4 up to 1/2" stud, which covers most of our distribution blocks and breaker lugs, and wire range handles 22 AWG up to 10 AWG—roughly 0.5 to 6 mm²—so our company can use them for control wiring and smaller power circuits without switching supliers.

One thing you'll notice handling them is the bare copper finish tarnishes fast if you leave them out, but that's typical for unplated terminals and it doesn't affect conductivity once crimped (usually 2-4 weeks before we notice any discoloration).

We're ordering a mix of sizes to test, but the real reason we went with these is the supplier actually stocks the UL certs for each batch without us chasing them down—most vendors just claim compliance and then you're waiting weeks for the COA.

Anyway, they're not great for outdoor use without additional sealing, but for indoor panels and OEM assemblies where space is tight, this is pretty much the standerd choice.
We typically start at 1,000 pieces per size, but if you need a test run we can do 500 for first-time orders. Just let us know what you're looking for.
Stock sizes usually ship within 3-5 working days. If you need a custom logo or non-standard size, figure around 10-15 days depending on the order volume.
Yes, we can share the UL certification file along with the test reports for the HP-UIT-R series. Just request it when you place the order.
Absolutely, the logo is customizable. We'll add your branding at no extra charge for bulk orders—just send us the artwork and we'll take it from there.
The #4 size fits wires from 0.5-1.5mm² (22-16 AWG) with a 3mm stud, while the 1/2" size handles 4-6mm² (12-10 AWG) on a 13mm stud. All sizes in between follow the same pattern—check our spec sheet for exact matches.
Great experience overall. The shipping was incredibly fast and efficient. My order arrived well ahead of the estimated delivery date, which was a very pleasant surprise. The packaging was secure and professional, ensuring the contents were perfectly protected during transit. Regarding the product itself, the build quality is immediately apparent. The copper material feels solid and substantial, not flimsy or cheap. The finish is clean and precise, which speaks to good manufacturing standards. The UL certification mark is clearly visible, providing that extra layer of confidence in the product’s safety and reliability for electrical applications. Customer service was also commendable. I had a minor inquiry about my order status, and the response was prompt, polite, and helpful. The representative was knowledgeable and resolved my question without any hassle. It’s clear they value their customers. While I haven’t installed these terminals in a project yet, based on initial inspection, they seem exactly as described and of high caliber. The combination of rapid logistics, excellent apparent quality, and responsive support makes this a very satisfactory purchase. I would not hesitate to order from this seller again for similar electrical components. The overall process from ordering to receipt was seamless.
Just outstanding in every aspect! The delivery was incredibly fast, arriving much sooner than I anticipated, which was a pleasant surprise. The quality of the product is exceptional; it feels durable and well-made, exactly as described. Customer service was top-notch too—they were responsive and helpful with any queries I had. Overall, a fantastic experience that I would highly recommend to others.
Absolutely impressed with the delivery speed; my order arrived much earlier than expected, which was a pleasant surprise. The packaging was secure and ensured the items were in perfect condition upon arrival. As for quality, the copper material feels durable and well-made, showing no signs of defects or poor craftsmanship. Additionally, the customer service team was responsive and helpful when I had a query, making the overall experience smooth and satisfying. I would definitely recommend this for anyone needing reliable electrical components without any hassle.
Logistics were incredibly fast and efficient, with the package arriving ahead of schedule and in perfect condition. The quality of the materials is outstanding, showing no signs of defects and feeling very durable. Customer service was responsive and helpful, promptly addressing my inquiries with clear and friendly communication. Overall, a very satisfying experience from start to finish.
Logistics were handled exceptionally well, with the package arriving ahead of schedule and in perfect condition. The quality of the terminals is outstanding, featuring robust construction and precise craftsmanship that ensures reliable electrical connections. Service from the seller was prompt and courteous, with clear communication throughout the process. Overall, a very satisfying purchase experience that I would highly recommend to others.