GMNA - GM255M
Mechanical and Quality Requirements for Externally Threaded Fasteners
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| Organization: | GMNA |
| Publication Date: | 1 April 1989 |
| Status: | inactive |
| Page Count: | 14 |
scope:
1 SCOPE.
This standard covers the mechanical and quality requirements for nine grades of steel bolts, screws, studs, sems, and U-bolts with hardness of HRC 39 maximum. Tapping screws, thread rolling screws and self drilling tapping screws are not included.
Document History
August 1, 2011
Mechanical and Quality Requirements for Externally Threaded Fasteners
This standard covers the mechanical and quality requirements for nine grades of steel bolts, screws, studs, sems, and U-bolts with hardness of HRC 39 maximum. Tapping screws, thread rolling screws...
GM255M
April 1, 1989
Mechanical and Quality Requirements for Externally Threaded Fasteners
1 SCOPE. This standard covers the mechanical and quality requirements for nine grades of steel bolts, screws, studs, sems, and U-bolts with hardness of HRC 39 maximum. Tapping screws, thread rolling...