Note: it is a requirment of ASTM AM & ASTM FM standard theat the bolt nut & washer should be assembled and supplied by one manufacturer who shall . ASTM Standards: A Specification for Zinc Coating (Hot-Dip) on Iron and. Steel Hardware2. A M Specification for High-Strength Bolts for Struc-. ASTM AM 碳合金钢螺母 – ASTM American Society for Testing and Materials(美国材料与试验协会)成立于年,是美国最老.

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Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels.

Please copy and paste this embed script to where you want to embed Embed Script. NOTE 7—The proof load of a nut is the axially applied load the nut must withstand without thread stripping or rupture. Heat analysis Product analysis Manganese: E Non-zinc-coated nuts are nuts intended for use 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.

The major and minor diameters shall also be increased by the allowance to provide the corresponding minimum and maximum major and minor diameters.


Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. With the written approval of the purchaser, the supplier may substitute as follows: NOTE 5—Examples of ordering descriptions are: NOTE 4—Purchasers are cautioned that different classes of nuts have different nut thickness see 7. Nickel or molybdenum may be used.


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For the convenience of the user, Committee F16 has highlighted those changes that impact the use of this standard. Heat analysis Product analysis Sulfur: Specification F, or otherwise hot-dip coated, shall be tapped ast, by a diametral amount sufficient z563m permit assembly on the coated bolt thread, unless other requirements are specified in the inquiry or purchase order.

Heat analysis Product analysis Molybdenum: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. A number in parentheses indicates the year of last reapproval.

See Guide G for methods of estimating the atmospheric corrosion resistance of low alloy steels. Packaging and Package Marking Proof loads Table 4 are computed by multiplying proof load stress Table 3 a63m the nut thread stress area.

NOTE 6—It is the intent of 4. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. NOTE 1—Throughout this specication, the term class means property class.

ASTM AM – Free Download PDF

ast See Guide G for methods of estimating corrosion resistance of low alloy steels. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

Committee F16 has identified the location of selected changes to this standard since the last issue A—07 that may impact the use of this standard. For smaller quantities A Gr.


Threads of nuts tapped after zinc coating 4. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Heat analysis Product analysis Titanium: Rejection should be reported to the producer or supplier promptly and in writing. Selection of steel analysis shall be the option of the manufacturer. Heat analysis Product analysis Vanadium: If you feel that your comments asttm not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.

Details of these supplementary requirements shall be agreed upon in writing between the manufacturer and purchaser.

The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specification. When individual marking is required, the mark shall be the grade letter symbol on one face of the nut.

This shall be the only hardness requirement a5663m nuts that are proof load tested. Link to Active This link will always route to the current Active version of the standard. Users of this ast are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.