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GM C201

2nd Edition, May 1, 2011

Complete Document

Wobble Gages and Gaging for Type 1A Cross Recesses

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


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ENGLISH * INACTIVE FOR NEW DESIGN
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Referenced Items:

GM C200

Product Details:

  • Revision: 2nd Edition, May 1, 2011
  • Published Date: May 2011
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: General Motors Company (GMNA)
  • Page Count: 2
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

GENERAL Wobble gaging provides a means for determining the compatibility of the Type 1A cross recesses formed into the heads of screws with companion screw drivers or power driver bits and will indicate the point where deviations in the recess contours affect satisfactory driver engagement. Recesses which exhibit excessive wobble characteristics will result in poor screw drive ability because of driver cam out prior to attaining the normal torque level, damage to the recesses, and/or accelerated driver wear.