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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ASTM AM – 07() Standard Specification for Carbon and Alloy Steel Nuts (Metric)

The manufacturer shall afford the inspector all reasonable facilities to satisfy him a653m the material is being furnished in accordance with this specification.

In addition, the manufacturer may add other distinguishing marks indicating that the nut is atmospheric corrosion resistant and of a weathering type.

This standard is subject to revision at any time by the responsible a5563m committee and must be reviewed every five years and if not revised, either reapproved or withdrawn.

Specification F, or otherwise hot-dip coated, shall be tapped oversize by a diametral amount sufficient to permit assembly on the coated bolt thread, unless other requirements are specified in the inquiry or purchase order.

Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels. A, B, D, Zstm Rejection and Rehearing A number astk parentheses indicates the year of last reapproval. When individual marking is required, the mark shall be the grade letter symbol on one face of the nut. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

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See Guide G for methods of estimating the atmospheric corrosion resistance asfm low alloy steels. Hex nuts made to the requirements of DH3 shall be marked with the symbol HX3 on one face. Adtm copy and paste this embed script to where you want to embed Embed Script. Size px x x x x Individual heats of steel are not identified in the finished product. Heat analysis Product analysis Chromium: C3 nuts may a563j made of any of the above listed material classes.

Please fill this form, we will try to respond as soon as possible. The two identifications shall preferably be in different locations and, when on the same level, shall be separated by at least two spaces. A min max 0. When this heat treatment is used, there shall be particular attention to the requirements in 6. Number of Tests 9.

B Acid bessemer steel only. Link to Active This link will always route to the current Active version of the standard. DC heat product 0. Current edition approved April 1, However, if markings are a563n on the bearing surface, they shall be depressed.

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Additional tests of individual shipments of material are not ordinarily contemplated. Heat analysis Product analysis Titanium: Plain Uncoated Nuts 7. For smaller quantities A Gr.

Heavy Hexagon Nuts ASTM AM

Note 1 — Throughout this specification, the term class means property class. If you feel that your comments have not received a fair hearing you should make your w563m known to the ASTM Committee on Standards, at the address shown below. Originally approved in We are a non-profit group that run this website to share documents. Please help us to share our service with your friends. When properly exposed to the atmosphere, these steels can be used bare uncoated for many applications.

Thank you for interesting in our services. Selection of the class shall be at the option of the manufacturer. Such nuts are suitable. 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 assemblability.