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GM B121 3rd Edition, May 1, 2011
Complete Document
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Metric Round Head Short Square Neck Bolts
Includes all amendments and changes through IN4D, May 2011
Additional Comments: ENGLISH * INACTIVE FOR NEW DESIGN
Page Count:4
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This standard conforms in all essentials with the American National Standard, ANSI B18.5.2.1M-Metric Round Head Short Square Neck Bolts. It requires, however, that the end of the bolt be are intended primarily for applications where the square neck will be engaged in thin metals.