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GM512M

2nd Edition, August 1, 2011

Complete Document

Mechanical and Material Requirements for Metric Thru Hardened Thread Forming and Thread Cutting Screws

Includes all amendments and changes through Inactive for New Design Notice 4, August 2011


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Superseded By: GMW15170

EN
Additional Comments:
ENGLISH * INACTIVE FOR NEW DESIGN * USE GMW15170
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Referenced Items:

GM1000M
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Product Details:

  • Revision: 2nd Edition, August 1, 2011
  • Published Date: August 2011
  • Status: Superseded By:
  • Superseded By: GMW15170
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 2
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This standard covers material and performance requirements applicable to metric neutral hardened thread forming and thread cutting screws and screw/washer assemblies intended for plastic or soft metals applications.

The primary objective of this specification is to insure that screws form or cut mating threads in materials of construction into which they are normally driven. Without deforming their own thread and without breaking during assembly or service. The types of materials of construction that are tapped with these screws are generally limited to plastic or soft nonferrous metals (aluminum/zinc die-cast, copper, brass) of hardness HRB 70 max.