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Metric Fasteners - Design and Performance Opportunities
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English
Abstract
Metric threaded fasteners being developed in North America differ in some important respects from current ISO standards. Significant weight savings can be achieved on M10, M12, and M14 Hex Cap Screws by adopting smaller hex head sizes. A formed hex cap screw is also proposed as an alternative design. Reduced diameter body cap screws with full body diameter shoulders offer both weight savings in longer lengths and increased elastic elongation. The 12 spline flange screw design is reviewed. A style 1, Property Class 9, hex nut is proposed to be made of AISI 1018 - 1020 steel without heat treatment.
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Citation
McMurray, J., "Metric Fasteners - Design and Performance Opportunities," SAE Technical Paper 770421, 1977, https://doi.org/10.4271/770421.Also In
References
- “A Study to Develop an Optimum Metric Fastener System” Engineering Report Cleveland, Ohio Industrial Fasteners Institute January 1971
- “Metric Fastener Standards” First Industrial Fasteners Institute 1976
- Kasuba R. Shugart J. “Engineering and Manufacturing Development of a New Metric Fastener - 12 Spline Flange Bolt,” 47 72 Transactions of Technical Conference on Metric Mechanical Fasteners March 17-19 1975
- 4. Alexander E. M. “Design and Strength of Screw Threads” 73 84 Transactions of Technical Conference on Metric Mechanical Fasteners
- Breed A. R. Belford J. B. “Mechanical and Material Requirements for Metric Threaded Fasteners” 114 122 Transactions of Technical Conference on Metric Mechanical Fasteners