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ASME B18.13.1M

2011 Edition, October 21, 2011

Complete Document

Screw and Washer Assemblies: SEMS (Metric Series)

Includes all amendments and changes through Reaffirmation Notice , October 21, 2011


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Product Details:

  • Revision: 2011 Edition, October 21, 2011
  • Published Date: October 21, 2011
  • Status: Active, Most Current
  • Document Language: English
  • Published By: ASME International (ASME)
  • Page Count: 36
  • ANSI Approved: Yes
  • DoD Adopted: Yes

Description / Abstract:

This Standard covers the general, dimensional, material, and mechanical requirements for metric throughhardened (property classes 8.8, 9.8, and 10.9) machine screws and case-hardened tapping screws from 5 mm to 12 mm captivated washer assemblies (SEMS). The covered washer types are helical, plain, conical, and toothed.

This Standard describes two different methods of SEMS manufacturing. It also covers standard and modified hardness requirements for machine screw SEMS.

The inclusion of dimensional data in this Standard is not intended to imply that all of the products described herein are stock production items. Consumers should consult with respective suppliers concerning the availability of products.

In addition, this Standard includes Nonmandatory Appendices that contain information considered of significant importance to both purchaser and manufacturer.