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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.
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
ANSI StandardsB18.10 Track Bolts and Nuts
AREMA StandardAmericanRailwayEngin Part 1
ICS Number Code 21.060.10 (Bolts, screws, studs)