About KUTNEX
A CNC machining company that decided to put its name on the parts.
KUTNEX is operated by Maoyu Technology Co., Ltd., a precision CNC milling factory in Taiwan. We do not outsource production — the terminals are cut, anodised and inspected in our own building.
Designed & Made in Taiwan
Every terminal is cut, anodised and inspected in our own factory in Taiwan. Not assembled here. Not finished here. Made here, from bar stock to boxed part.
The aluminium arrives with a mill certificate, gets tested before it is machined, and the results are published on this site rather than described. That is what the label is supposed to mean.
Our products have sold on Amazon since 2023 under the name Kaas. KUTNEX is the parent brand those products and every new series now belong to. The ranges are named by what they do — Eagle for multi-way terminals, STING for tight engine bays, FLEX for modular heads.
Independently tested, not just claimed
Anyone can print "aircraft-grade aluminium" on a listing. We had ours tested by SGS, an independent laboratory, and we publish the report numbers so you can ask for them.
| Series | SGS report | Date | Result |
|---|---|---|---|
| STING | KK-25-09211A | 13 Sep 2025 | A6061-T6 composition verified · 46.0% IACS |
| Eagle | KK-26-04498 | 05 Jun 2026 | 48.0% IACS |
| FLEX | KK-26-04499 | 05 Jun 2026 | 46.7% IACS |
Electrical conductivity tested to ASTM E1004-23; IACS is the standard scale for how well a metal conducts. The aluminium is separately tensile tested to ASTM B557-15 — 52 ksi tensile, 50 ksi yield, against 6061-T6 specification minimums of 38 and 35. Machined and tested in Taiwan. See the numbers and the reports →
Why machined and not cast
Most battery clamps are cast or stamped, which means the surface that grips your battery post is approximately the right shape. We machine that surface, so it matches the post taper. That single decision is behind most of what our terminals do differently — see why terminals come loose.