ASTM A Standard Specification for Steel Transmission Tower Bolts, Zinc- Coated and Bare. This standard is issued under the fixed designation A; the number immediately . ASTM A – XX, with hot-dip zinc-coated hex nuts, Grade A, ASTM. 1 Aug This standard is issued under the fixed designation A ; the number . zinc coated, shear testing required, ASTM A – XX, with hot-dip.
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Different tests shall be conducted in order to determine the following mechanical properties of bolts: This abstract is a brief summary of satm referenced standard.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete ast up to date. Steel for the manufacture of bolts shall be made by any of the following processes: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM A – 07 Standard Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare
Type 0 includes hot-dip zinc-coated bolts made of low or medium carbon steel, Type 1 includes hot-dip zinc-coated bolts made of medium carbon steel, quenched and tempered, Type 2, and Type 3 includes bare, quenched, and tempered bolts made of weathering steel. Link to Active This link xstm always route to the current Active version of the standard.
The following types of bolts are: Aatm 3 bolts shall be quenched only in oil from above the austenitizing temperature.
ICS Number Code It is informational only and not an official part of the standard; the full text of the standard itself must be a34 to for its use and application. Cold-headed Type 0 bolts shall be stress relief annealed before zinc coating to remove cold work effects such that the hardness measured anywhere on the surface or through the cross-section shall meet the requirement specified.
Type 1 bolts produced from medium carbon steel shall be quenched in a liquid medium from above the austenizing temperature. The various types of bolts covered in this specification are: Type 1 bolts produced from medium carbon steel to which chromium, nickel, molybdenum, or boron were intentionally added shall be quenched only in oil from above the austenitizing temperature. No other units of measurement are included in this standard.
The various types of bolts covered in this specification are:. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
This standard does not purport to address all of the safety concerns, if any, associated with its use. Historical Version s – view previous versions of standard.
This specification covers zstm chemical and mechanical requirements of hexagon and square-head zinc-coated steel bolts and atmospheric corrosion-resistant bolts for use in the construction of transmission towers, substations, and similar steel structures.