Custom development
Custom stainless steel components.
Chains, beads, findings and clasps. The parts nobody photographs and everybody notices when they fail — and the point at which a collection either holds together or does not.
Reviewed 19 October 2026 · KUBO Jewelry, Guangzhou
KUBO Jewelry supplies custom stainless steel components including cable, curb, box, rope and Figaro chains, spacer beads, earring findings, jump rings, lobster clasps, box clasps and spring rings, in 304 or 316L, matched to your finished pieces for plating tone and gauge.
Components are the least visible and most consequential part of a collection. A buyer assessing a sample holds the pendant up to the light; the customer wears the piece for a year and discovers the clasp.
Why we supply components at all
Most factories sell finished pieces and buy the parts from a components wholesaler. That works until something goes wrong: the gold tone on a reordered clasp does not match the chain, or a batch of jump rings arrives a gauge lighter than the approved sample, and there is no single party accountable for the failure.
Because we produce the chain, the finding and the finished piece, the gauge and the plating tone are specified once and held in one place. On a reorder, the components come from the same source as the last time.
Gauge and load
The most useful thing we can do for a buyer here is match the component to the load it will carry. Some working figures:
| Component | Practical limit |
|---|---|
| 0.6 mm jump ring | up to about 2 g |
| 0.8 mm jump ring | up to about 5 g |
| 1.0 mm jump ring | up to about 10 g |
| 10 mm lobster clasp | up to about 20 g |
| 12 mm box clasp | 20 g and above |
These are working limits, not published specifications — the clasp brand and the way the piece is worn both matter. But they are a more useful starting point than choosing by appearance.
Chain types and what they communicate
Chain geometry is a design decision with a cost attached:
- Cable — the cheapest and most reliable. Uniform links, easy to repair, honest.
- Curb — flattened links, more reflective, reads as more expensive at the same weight.
- Box — square section, sits flat against the skin, and takes a box clasp neatly.
- Rope — visual density without weight, effective for pendants that need a heavier-looking chain.
- Figaro — a pattern of alternating links, used to signal a more considered design.
If you are launching a first range, one reliable cable and one curb will cover most applications. Adding chain types multiplies the SKUs you have to hold and the tone-matching you have to manage.
Findings and posts
For earrings, the finding is the product: 316L posts at 0.8 or 1.0 mm, with screw or butterfly backs, are the difference between a piece that is worn and a piece that is returned. We will always recommend 316L for anything passing through a piercing, regardless of the body material.
| Specification | Options |
|---|---|
| Chains | Cable, curb, box, rope, Figaro, snake, satellite |
| Chain width | 1 mm to 6 mm |
| Findings | Jump rings, split rings, ear wires, posts, bails |
| Clasps | Lobster, box, spring ring, toggle, magnetic |
| Beads | Round, faceted, spacer, letter and shaped |
| Material | 304 or 316L stainless steel |
| Finish | Mirror, brushed, satin, diamond-cut |
| Colour | Steel, gold, rose gold, black, gunmetal |
Components are sold to support your own production and are supplied as part of a piece specification. If you need components alone, tell us the intended use — the gauge and load requirements depend on what the part will carry.
{{#if wide_caption}}Other categories
Continue exploring
The same tooling, finishing and QC apply across every category. Most collections combine two or three.
Rings
Bands, signet rings, stacking rings and statement pieces in 304 or 316L stainless steel.
Necklaces & pendants
Chains, pendants, chokers and layered sets — matched so the chain and pendant arrive as one product.
Earrings
Hoops, studs, drops and huggies — the category where metal grade and post quality matter most.
Developing a new range?
Tell us the specification.
Send a drawing, a reference product or a written brief. We will reply with feasibility, a proposed sample timeline and the questions that matter for your price point.
Request a quotation →