Sewing thread numbering explained: Tex, Nm, denier and ticket numbers

Understand the systems. Compare the numbers. Choose the right thread.

Intro

Finding the right thread size starts with understanding how it is specified. This chapter provides a clear guide to sewing thread numbering and helps make different systems easier to navigate.

Short definition

Sewing thread numbering describes the fineness or linear density of a sewing or embroidery thread using internationally recognised numbering systems such as Tex, Nm, denier and ticket numbers. Understanding these systems is essential for comparing thread sizes, selecting suitable sewing threads and ensuring consistent sewing performance across different applications. 

Quick facts

PropertyValue
CategorySewing thread technology
Main purposeDefine thread fineness and linear density
Common systemsTex, Nm, dtex, denier, ticket numbers
International standardTex (ISO system)
Typical usersGarment manufacturers, technicians, product developers
Related topicsThread selection, stitch types, thread consumption, sewing needles

Also known as

Technical terms
 
  • Sewing thread numbering 
  • Thread numbering 
  • Thread size 
  • Thread count 
  • Thread fineness 
  • Linear density 
  • Thread designation 
  • Thread specification 
Common descriptions
 

People often search for:

  • What do the thread numbers mean?
  • Which thread size should I use?
  • How do I compare thread sizes?
  • Why does one thread have so many numbers?
  • What is Tex?
  • What is Nm?
  • What is denier?
  • What is dtex?
  • What is a ticket number?
  • How do I convert thread sizes?
  • Which thread is thicker?
  • Which thread numbering system is correct?

International terminology

LanguageCommon terminology
EnglishSewing thread numbering, Thread size, Thread count, Linear density
GermanNähgarnnummerierung, Feinheitsbezeichnung, Garnnummer
FrenchNumérotation des fils à coudre, Titre du fil
ItalianNumerazione dei filati per cucire, Titolazione
SpanishNumeración del hilo de coser, Título del hilo
Chinese缝纫线号, 线密度, 缝纫线规格
VietnameseHệ thống đánh số chỉ may, Độ mảnh của chỉ

FAQ