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1.1 This specification covers carbon steel track bolts and carbon steel nuts for use in conjunction with joint bars to connect rails in railroad track.
1.2 Two grades of track bolts are defined:
1.2.1 Grade 1, Low-Carbon, Untreated, primarily for industrial and mine track use.
1.2.2 Grade 2, Heat-Treated, for general track use.
1.3 Two grades of nuts are defined:
1.3.1 Grade 1, Low-Carbon or Soft Steel , primarily for application on Grade 1 track bolts.
1.3.2 Grade 2, Medium-Carbon, for general application on track bolts.
1.4 The values stated in inch-pound units are to be regarded as the standard.
ICS Number Code 21.060.10 (Bolts, screws, studs)
UNSPSC Code 31161625(Railway track bolt)
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ASTM A183-98, Standard Specification for Carbon Steel Track Bolts and Nuts, ASTM International, West Conshohocken, PA, 1998, www.astm.orgBack to Top