Overview of different Thread Standards

Overview of different Thread Standards

Overview of different Thread Standards

English: Screws with different thread types. From left to right:

  • Metric M12, 40 mm long (ISO 4017, Strength 8.8)
  • Metric Fine M12x1.25, 40mm long (ISO 8676, Strength 8.8)
  • Metric Fine M12x1.5, 40mm long
  • United thread Standard Coarse UNC 1/2 inch, 1.5 inch long (Strength Grade 5 ( ~ 8.8 ). Dimensions in metric would be 12.7mm by 38.1mm)
  • United thread Standard Fine UNF 1/2 inch, 1.5 inch long (Strength Grade 5 ( ~ 8.8 ). Dimensions in metric would be 12.7mm by 38.1mm)
  • British Withworth BSW 1/2 inch, 1.5 inch long. (Dimensions in metric would be 12.7mm by 38.1mm)

All screws with hex bolt heads, although they also differ slightly in size depending on the standard.

Creative Commons LicenseThis work by Christoph Roser at AllAboutLean.com is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Please credit the image as shown below. For digital documents and web pages please do include the links as shown below. Thank you.

By Christoph Roser at AllAboutLean.com under the free CC-BY-SA 4.0 license.
  • File Name: Thread-Types.jpg
  • File type: jpg
  • File size: 661.56 KB
  • Dimensions: 3796 x 1986
  • Date: October 21, 2017
  • SEO Title: Overview of different Thread Standards
  • SEO Description: English: Screws with different thread types. From left to right: Metric M12, 40 mm long (ISO 4017, Strength 8.8); Metric Fine M12x1.25, 40mm long (ISO 8676, Strength 8.8); Metric Fine M12x1.5, 40mm long; United thread Standard Coarse UNC 1/2 inch, 1.5 inch long (Strength Grade 5 ( ~ 8.8 ). Dimensions in metric would be 12.7mm by 38.1mm); United thread Standard Fine UNF 1/2 inch, 1.5 inch long (Strength Grade 5 ( ~ 8.8 ). Dimensions in metric would be 12.7mm by 38.1mm); British Withworth BSW 1/2 inch, 1.5 inch long. (Dimensions in metric would be 12.7mm by 38.1mm); All screws with hex bolt heads, although they also differ slightly in size depending on the standard.
  • SEO Keywords: screw, threads, standards, metric, fine, withworth, BSW, UTF, UTC, M12
  • Post or page attached: Fertigungstechnik für Führungskräfte – Erste Ausgabe, Fertigungstechnik für Führungskräfte, The Challenges of Material Supply for Assembly, 230 Years of Interchangeable Parts – A Brief History,
Many but not all of the images on this blog are under a Creative Commons License. If and only if the image above is under a Creative Commons license, you can find details for the different licenses at the Creative Commons. The most common licenses are Attribution CC-BY 2.0; 2.5; 3.0; and 4.0; and Attribution Share Alike CC-BY-SA 2.0; 2.5; 3.0; and 4.0;