ASME B18.2.2-2015 pdf free

ASME B18.2.2-2015 pdf free.Nuts for General Applications: Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series).
ASME B18.2.2 is intended to cover the complete general and dimensional data for the various types of inch series square and hex nuts, including machine screw nuts and coupling nuts, addressed by this Standard. Also included are appendices covering gaging of slols in slotted nuts, wrench openings for nuts, formulas on which dimensional data are based, and measurement of bearing surface runout. It should be understood that where questions arise concerning acceptance of product, the dimensions in the tables shall govern over recalculation by formula.
1.1.2 The inclusion of dimensional data in this Standard is not intended to imply that all of the products described herein are stock production sizes. Consumers are requested to consult with manufacturers concerning lists of stock production sizes.
1.2 Comparison to ISO Standards
There are no comparable ISO inch fastener standards.
1.3 Dimensions
Unless otherwise indicated, units of measurement arc expressed in inches.
1.4 Options
Where options are allowed, they shall be selected at the manufacturer’s discretion unless otherwise specified by the purchaser.
1.5 Terminology References
For definitions of terminology not specifically defined in this Standard, refer to ASME 1318.12.
2 REFERENCES
Unless otherwise specified, the standards referenced shall be the latest edition at the time of order placement.
ASME B1.1, Unified Inch Screw Threads (UN and UNR Thread Form)
ASME 81.3, Screw Thread Gaging Systems for Acceptability: Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ)
ASME B18.12, Glossary of Terms for Mechanical Fasteners
ASME B18.18, Quality Assurance for Fasteners
ASME B18.24, Part Identifying Number (PIN) Code System for B18 Fastener Products
ASME 8107 Series, Standards for Hand Took
Publisher: The American Society of Mechanical Engineers (ASME), Two Park Avenue, Nes York, NY 10016-599() (ww.asme.org)
ASTM A563, Standard Specification for Carbon and Alloy Steel Nuts
ASTM F467, Standard Specification for Nonferrous Nuts for General Use
ASTM F594, Standard Specification for Stainless Steel Nuts
ASTM F1941, Specification for Electrodeposited Coatings on Threaded Fasteners lUnified inch Screw Threads (UN/UNR)J
Publisher: American Society for Testing and Materials
(ASTM International), 100 Barr Harbor Drive,
P.O. Box C700, West Conshohocken, PA 19428-2959
(wwwastm.org)
SAE J995, Mechanical and Material Requirements for Steel Nuts
Publisher: SA E International, 400 Commonwealth Drive, Warrendale, PA 15096 (www.sae.org)
3 GENERAL DATA
3.1 Width Across Flats
The width across fiats of nut shall be the overall distance measured, perpendicular to the axis of nut, between two opposite sides of the nut in accordance with the notes on respective dimensional tables.
Maximum width across flats shall not be exceeded, except as stated below. No transverse section through the nut between 25% and 75% of the actual nut thickness as measured from the bearing surface shall be less than the minimum width across flats.
NOTE: Nonferrous milled-from-bar hex nuts: The minimum across flats dimensions ol nonferrous milled-from-bar hes nuts shall not be less than the values tabulated in Tables 1•l through 13. The maximum across flats size may be greater than the tabulated values in Tables 1-1 through 13. but shall not be equal to or greater than the minimum wrench opening shown in Table B-1, Nonmandatory Appendix B.
3.2 Corner Fill
A rounding or lack of fill at junction of hex corners with chamfer shall be permissible, provided the width across corners is within specified limits at and beyond a distance equal to 17.5% of the basic thread diameter from the chamfered face.ASME B18.2.2 pdf download.