Zinc Alloy Lobster Clasp for Shirts — Specification, Uses and Sourcing Notes
Zinc Alloy Lobster Clasp for Shirts: Specification, Uses and Sourcing Notes
Zinc Alloy Lobster Clasp is the version buyers specify for shirts when the base material is fixed by performance rather than by price. This entry sets out what the material actually changes, which specification to write into the tech pack, and where the cost sits — the three questions that decide whether the item passes bulk approval.
What it is
Zinc Alloy gives lobster clasp its weight-to-strength ratio. In practice that means the trim behaves differently in cutting, in finishing and in wear: shrinkage allowance has to be built into the spec. Buyers who specify the material up front avoid the most common failure — an item that looks right on the sample card and behaves differently in bulk.
Typical specification
| Item | Lobster Clasp |
|---|---|
| Base material | Zinc Alloy |
| Standard size | 3# Gauge |
| Common finishes | Anodised Finish, Laser Engraved Finish, Rose Gold Plating |
| Processes | Brushing, Piece Dyeing, Anodising |
| Typical application | Shirts |
| Related applications | Jackets, Gloves, Bedding Sets, Swimwear |
| Test standard | JIS L Standards |
| Usual packing | 200 pieces per polybag, 5000 per carton |
Properties that matter in buying
- Dimensional stability — 3% allowance is built into the spec before cutting.
- Colour fastness — tested to JIS L Standards on the actual base material, not on a substitute.
- Mechanical performance — pull strength after 20 cycles or washes.
- Compliance — JIS L Standards documentation issued with the shipment.
- Consistency — the approved counter sample becomes the reference for every reorder.
Common uses
- Bridal Gowns
- Dresses
- Sleepwear
- Activewear
- Baby Clothing
- Blouses
How to specify it
- Name the base material in the tech pack, not just the item.
- Fix the size and tolerance in writing before sampling starts.
- Approve a counter sample made from the actual bulk base material.
- Order the test report against the standard your market requires.
- Retain a golden sample at the factory and a second one with you.
Related reading
Related specifications on this site cover chest canvas, covered button, hook and loop tape, boiled wool fabric, and the processes most often paired with lobster clasp include sanforising, uv protection finishing, flame retardant finishing.
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