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| Decision field | Open accessKnitting Needle to Crochet Hook Size ChartGlobalRemove | Open accessCPSC Certificate eFilingUnited States · North AmericaRemove | Quote-basedOptitex 2D/3D Pattern DesignGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Learn techniques | Check standards | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Yarn | Standards | Patterns & fit |
| Best for | Finding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gauge | Planning the current CPSC certificate-data handoff for regulated imports with the importer, finished-product certifier, customs broker, and entry records | Integrated pattern, marker, and 3D production workflows |
| Know before using | A shared nominal diameter does not make a knitting needle and crochet hook interchangeable or predict equal gauge or fabric. The reference is not a physical measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, or project approval. | The portal does not decide whether a product requires certification, identify the correct rules or certificate data, classify an entry, replace the current 16 CFR part 1110 text, or reconcile a filing to an actual shipment. Effective dates and workflows differ by entry route; use current CPSC, CBP, customs, product-safety, and legal review. | Pricing is not public, modules and system requirements must be confirmed, and macOS is not supported. Vendor accuracy and fit language does not prove results for an actual product. Pilot native and exchanged files with the receiving supplier, calibrated materials, approved blocks and grade rules, marker and output devices, tech-pack fields, training, version control, and risk-appropriate physical fit and production checks. |
| Practical access | |||
| For | Makers | Apparel brands | Apparel brands |
| Location or jurisdiction | Global | United States · North America | Global |
| Access | Open access | Open access | Quote-based |
| Format | Stitch Authority | Reference | Software |
| Source type | Stitch Authority | Government guidance | First-party platform |
| Source and review | |||
| What the source establishes | Rechecked July 28, 2026. The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows, aligns hooks and needles only when their nominal millimetre value matches, and leaves missing rows or aliases unfilled. | CPSC operates the eFiling portal with role-specific importer, broker, applicability, Product Registry, regulated-product, laboratory, ACE, FAQ, video, and document-library routes. The certificate final rule took effect July 8, 2026 for covered non-FTZ products, with separate timing for covered FTZ entries. | Optitex's current page describes 2D pattern creation, grading, verification, Tech Pack Essentials, marker creation and nesting, cut and plot output, 3D virtual samples, fabric simulation, colour and print placement, tension maps, and avatar editing. Its support page lists native and standard CAD interchange routes and states that Optitex does not support macOS. |
| Linked page reviewed | Jul 28, 2026 | Jul 16, 2026 | Jul 21, 2026 |
| Next review due | Jul 28, 2027 | Oct 14, 2026 | Jan 17, 2027 |
| Inspect | |||
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