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Decision fieldOpen accessKnitting Needle to Crochet Hook Size ChartGlobalRemoveOpen accessUnknown Textile Identification & Evidence RecordGlobalRemove
Decision fit
Primary jobLearn techniquesChoose materials
Also useful forNo additional job recordedNo additional job recorded
AreaYarnMaterials
Best forFinding the current CYC hook and needle aliases that share one known nominal metric diameter before confirming project gaugeInvestigating an unknown textile without using flame, smoke, odor, or residue as composition, flammability, care, safety, or compliance proof
Know before usingA 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 record does not identify a submitted textile, provide a home burn procedure, turn an observation into a fibre or blend result, choose a laboratory method, establish flammability or market compliance, validate a care instruction, or replace qualified laboratory, textile, conservation, safety, compliance, and legal review.
Practical access
ForMakersBoth
Location or jurisdictionGlobalGlobal
AccessOpen accessOpen access
FormatStitch AuthorityStitch Authority
Source typeStitch AuthorityStitch Authority
Source and review
What the source establishesRechecked 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.The guide cites current AATCC qualitative and quantitative fibre-analysis methods, the published ISO 1833-1 quantitative-analysis principles, ASTM's withdrawn D276 status and reinstatement work item, current FTC U.S. textile-label guidance, and current CPSC clothing-textile flammability guidance.
Linked page reviewedJul 28, 2026Jul 16, 2026
Next review dueJul 28, 2027Jul 16, 2027
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