ASTM Standards: A Specification for Zinc Coating (Hot-Dip) on Iron and. Steel Hardware2. A M Specification for High-Strength Bolts for Struc-. Heavy Hex Structural Nuts are manufactured to ASTM A,. ASTM AM and ASTM A specifications and are designed to be stronger than the bolts with. This specification covers chemical and mechanical re- ASTM Standards: 2 quirements for eight property classes of hex and hex-flange A /A M.
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Hex nuts made to the requirements of DH3 shall be marked with the symbol HX3 on one face.
Zinc-coated nuts are nuts intended for use with externally threaded fasteners which are hot-dip zinc-coated, mechanically zinc-coated, or have a plating or coating of sufficient thickness to necessitate overtapping the nut thread to provide assemblability.
Heat analysis Product analysis Nickel: A, B, D, DH C, to Specification F This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either a563k or withdrawn.
See Guide G for methods of estimating the atmospheric corrosion resistance of low alloy steels.
Size px x x x x Others are astmm suitable. Work Item s – proposed revisions of this standard. Please copy z563m paste this embed script to where you want to embed Embed Script. When A zinc-coated inch series nuts are supplied, the zinc coating, overtapping, lubrication and rotational capacity testing shall be in accordance with Specification A Nickel or molybdenum may be used.
NOTE 2—A complete metric companion to Specification A has been developed—AM; therefore, no metric equivalents are presented in this specification. B Non-zinc-coated nuts are nuts intended for use with externally threaded fasteners which have a plain nonplated or noncoated finish or have a plating or coating of insufficient thickness to necessitate overtapping the nut thread to provide a63m.
B Acid bessemer steel only. 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.
Your comments will receive careful consideration at a meeting of astk responsible technical committee, which you may attend.
ASTM AM – Free Download PDF
E Non-zinc-coated nuts are nuts intended for aa563m with externally threaded fasteners, which have a plain nonplated or noncoated finish or a have a plating or coating of insufficient thickness to necessitate overtapping the nut thread to provide assembiability. Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels.
Heat analysis Product analysis Manganese: Rejection and Rehearing The atmospheric corrosion resistance of these steels is substantially better than that zstm carbon steel with or without copper addition see 5. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. The two identifications shall preferably be in different locations and, when on the same level, shall be separated by at least two spaces.
Plain Uncoated Nuts 7. Zinc-coated nuts are nuts intended for use with externally threaded fasteners which are not hot-dip zinc-coated, mechanically zinc-coated, or have a plating or coating of sufficient thickness to necessitate overtapping the nut thread to provide assembiability.
We need your help! When required, they a63m covered by the applicable bolt specification. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. Rejection should be reported to the producer or supplier promptly and in writing. Committee F16 astj identified the location of selected changes made to this standard since the last issue, A—04a, that may impact the use of this standard.
Nuts With Other Coatings 7. In case of dissatisfaction astmm the results of the test, the producer or supplier may make claim for a rehearing.
Heat analysis Product analysis Chromium: 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.
A min max 0. Heat analysis Product analysis Phosphorus: No other units of measurement are included in this standard. Originally approved in