Guideline

GL-OM-12 · Metal Button, Snap & Eyelet Attaching

Scope

Scope: Covers the end-to-end control of metal button, snap, eyelet, rivet, and related fastening attachment, including approved sourcing, machine settings, dimensional and strength checks, functional checks, and defect control.

Purpose: Ensures metal fasteners are securely and correctly attached, meet specified strength and dimensional requirements, and do not create safety or quality risks in finished products.

Owner: DMR owns and coordinates the Metal Button, Snap & Eyelet Attaching process, with MR responsible for technical requirements and controls, FT for applicable product-specific requirements, and Vendors for production execution and testing.

Applies to: Applies to FT, MR, and Vendors working on Good Manufacturing Processes (GMP) within Order Management.

Requirements

1. R1 — MR — Source all metal buttons, eyelets, rivets and snap fasteners from approved manufacturers

2. R2 — Vendor — Check the attaching process every hour from start to finish

3. R3 — MR — Obtain pressure settings from the metal trim manufacturer with a datasheet report at the purchasing stage, and production must not start without the datasheet

4. R4 — Vendor — Make machine settings by the maintenance department according to the datasheet values and the values verified every hour with a caliper

5. R5 — MR — If the values deviate, call the mechanic in charge, isolate 1 hour of production, check it 100% and separate the defective pieces

6. R6 — Vendor — Record caliper results on the "pinch setting control chart" form and action taken according to the colour indicators (red: production stops)

7. R7 — Vendor — Measure the fabric thickness with a micrometer

8. R8 — MR — Apply a 90 N pull test to snap fasteners, rivets and shank buttons in line with the requirements

9. R9 — Vendor — The process controller must check the attaching height on 5 random pieces every two hours and record it in the Pull Test Report

10. R10 — Vendor — For pull strength, prepare mockup panels exactly representing the attaching area on the product, then test and report them twice a day

11. R11 — Vendor — Carry attaching height and strength checks out and reported separately for each machine for different metal trims or areas with a different number of fabric plies

12. R12 — Vendor — After attaching there must be no breakage, cracking, crushing or surface peeling on the metal trim, and no burrs or sharp edges

13. R13 — MR — Trims with an open-close function must be functionally checked by opening and closing them 3 times

14. R14 — FT — Attach on children's and baby products the snap fastener to exactly the same fabric ply; applications overlapping the seam, binding or interlining are assessed as a critical defect

Used in

• SOP-OM-08 Trim & Accessories Approval
• SOP-OM-18 Final Inspection

Generated automatically from the guidelines each SOP lists.

Tutorial

This training video supports the Metal Button, Snap & Eyelet Attaching process. It does not replace the numbered steps.

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Exam

Exam for the Metal Button, Snap & Eyelet Attaching process. Take it after you finish the process article, including the tutorial video.

Pass mark	Expected duration	Attempts
80%	About 10 minutes	1 (one attempt per person)

Pass mark 80%. 10 single-choice questions, one point each.

Your name and score are recorded and count towards the leaderboard. You have one attempt, so finish the article and the tutorial before you start.

Locked

Watch the tutorial video above to 100% to unlock the exam. The questions appear here once your progress is complete.

Changelog

Changelog

Date	Changed by	What changed
2026-10-12	Order Management	Reworded rule R5 for clarity; meaning unchanged.
2026-10-12	Order Management	Training video added and exam published.
2026-09-30	Order Management	Converted from process to guideline (GL-OM-12).
2026-09-15	Order Management	Added related process references.
2026-09-11	Order Management	Article Added