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ASTM
A66-21
Standard Specification for Steel Screw Spikes
2021
3
ASTM Vol.01.04 (2022)
This specification covers steel screw spikes used as fastenings between railroad rails, tie plates, and ties.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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