This specification covers carbon steel track bolts and carbon steel nuts for use in conjunction with joint bars to connect rails in railroad track. The required chemical composition for steel is presented in details. The full section and the reduced-section bolt tension tests requirements are specified as per reference materials.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
B18.10 Track Bolts and Nuts
AmericanRailwayEngin Part 1
fasteners-steel; rails; railway applications; steel bolting materials; steel rails; track bolts and nuts; Bolting materials; Carbon steel bolting materials--specifications; Fasteners (metal)--specifications; Railroad steel materials; Steel bolting materials--specifications; Track bolts and nuts--specifications;
ICS Number Code 21.060.10 (Bolts, screws, studs)
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