1、AMERICAN NATIONAL STANDARD Large Rivets ANSI B18.1.2 - 1972 1/2 Inch Nominal Diameter and Larger -. (REVISION OF 818.4-1960) _- . R REAFFIRMED 1995 FOR CURRENT COMMITTEE PERSONNEL PLEASE SEE ASME MANUAL AS-11 SECRETARIAT SOCIETY OF AUTOMOTIVE ENGINEERS THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS PU
2、BLISHED BY THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS United Engineering Center 345 East 47th Street New York, N. Y. 1001 7 Any part of this standard may be quoted. Credit linesshould read: “Extracted from American National Standard, Large Rivets (ANSI B 18.1.2- 19721, with the permission of the p
3、ublisher The American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, N. Y. 10017. THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Copyright 0, 1972, by Printed in U.S.A. II American National Standards Committee 818 for the standardization of bolts, screws, n
4、uts, rivets and similar fasteners was organized in March 1922, as Sectional Com,mittee 818, under the aegis of the American Engineering Standards Committee (later the American Standards Association, then the United States of America Standards Institute and, as of October 6, 1969, the American Nation
5、al Standards Institute, Inc.) with the Society of Automotive Engineers and the American Society of Mechanical Engi- neers as joint sponsors. Subcommittee 1 was subsequently appointed and charged with responsibility for the standardization of rivets. Initial efforts of the Subcommittee were directed
6、at development of a standard covering solid rivets of less than 1/2 inch nominal diameter which was approved and designated 8 18a-1927. This was followed by a standard covering tinners, coop.ers and belt rivets that was adopted under the designation 8189-1928. Extensive research, periods of experime
7、ntation, and consultation with the American Society for Testing and Materials and the Boiler Code Committee of the American Society of Mechanical Engineers during the ensuing years culminated in Subcommittee acceptance, in 1936, of a proposal covering rivets 1/2 inch nominal size and larger. This pr
8、oposal, following approval by the Sectional Committee and sponsor organ- izations was designated an American Standard, 818.4-1937, in March of 1937. Following reorganization of Sectional Committee 818, in 1947, Subcommittee 1 was requested to review the documents under its jurisdiction to bring them
9、 up to date and, as necessary, develop them into complete product standards. A thorough study of the 818.4 standard was conducted over meetings of the Subcommittee held on October 9, 1947, June 4, 1948 and December 1, 1948. This resulted in a recommen- dation that the pan head rivets should be chang
10、ed to conform with the American Bureau of Shipping and U. S. Navy design which all manufacturers, except one, were found to be producing. A proposal dated September 1959, reflecting this change and additional refinements was approved by letter ballot of the 818 Committee and sponsors, and presented
11、to the American Standards Association for approval and designa- tion as an American Standard. This was given on August 30, 1950. The 818 Committee by letter ballot of August13,1956 approved reaffirmation of the 818.4-1950 docu- ment and, following approval by the sponsors, this status was confirmed
12、by the American Standards Association on May 27, 1957. A proposed revision dated August, 1959 was approved by the Sectional Committee, the sponsors, and the American Standards Association and was designated an American Standard on March 9, 1960. During 1970, Subcommittee 1 developed a proposed revis
13、ion incorporating changes to the nomenclature and the method of dimensioning applicable to countersunk type heads and a complete editorial revamping of the format to conform with related documents. Following letter ballot approval by the 818 Committee and sponsor organizations, the revision was subm
14、itted to the American National Standards Institute and was designated an American National Standard, ANSI 818.1.2-1972, on January 28, 1972. . Ill AMERICAN NATIONAL STANDARDS COMMITTEE 818 Standardization of Bolts, Nuts, Rivets, Screws and Similar Fasteners OFFICERS R. P. Trowbridge, Chairman F. V.
15、Kupchak, Vice-Chairman R. B. Belford, Secretary COMMITTEE PERSONNEL AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA J. F. Cramer, The Boeing Company, Seattle, Washington 5. J. Turek, Grumman Aircraft Engineering Corporation, Bethpage, Long Island, New York AMERICAN INSTITUTE OF INDUSTRIAL ENGINEERS R. T
16、. Kelly, Hitchcock Publishing Company, Wheaton, Illinois AMERICAN SOCIETY FOR TESTING AND MATERIALS J. w. Caum, American Society for Testing and Materials, Philadelphia, Pennsylvania AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS F. C. Ewert, Deere ler 1 /:ft 1 Top 1 Side Rivet Head Type Diameter Radius
17、 Radius I Basic Basic Button Head A = 1.827D - High Button Head (Acorn) - A = 1.500D + 0.125 Cone Head I A = 1.827D 1 B = 0193SD Pan Head I A = 1.681D I B = 1.000D Basic Basic Basic H = 0.688D G = 0.954D H = 0.425A G = 0.425A H = 0.828D F = 1.500H H = 0.656D - - - - - Values shown in dimensional tab
18、les have been adjusted to the decimal equivalent of the nearest common fraction of an inch. Hold-On (Dolly Bar) and Rivet Set Impressions Bottom Impression Diameter Impression Diameter Rivet Head Type Impression I Base 1 Side Impression Impression Radius Radius Depth Basic I Basic I Basic I Basic I
19、Basic Button Head G1 =0.954D HI =0.641D - A 1 = 1.800D - High Button Head (Acorn) F 1 = 1.500H G 1 0.425A H 1 = 0.400A - A I = 1.485D + 0.124 Pan Head Values shown in dimensional tables have been adjusted to the decimal equivalent of the nearest common fraction of an inch. - - H1 =0.609D 61 = 1.000D
20、 A 1 = 1.639D 17 AMERICAN NATIONAL STANDARDS FOR SCREW THREADS. BOLTS. NUTS. RIVETS. SCREWS AND SIMILAR FASTENERS Unified Screw Threads 81.1-1960 Unified Screw Threads-Metric Translation . 6l.la-1968 Gages and Gaging far Unified Screw Threads . 61.2-1966 Nomenclature. Definitions. and Letter Symbols
21、 for Screw Threads 61.7-1965 Unified Miniature Screw Threads . 61.10-1958 Microscope Objective Thread 61.11-1958 Class 5 Interference . Fit Thread 61.12-1963 Small Solid Rivets (7/16 Inch Nominal Diameter and Smaller) 618.1.1-1972 Large Rivets (1/2 Inch Nominal Diameter and Larger) . 618.1.2-1972 Sq
22、uare and Hex Bolts and Screws 618.2.1-1972 Square and Hex Nuts 618.2.2-1972 Socket Cap. Shoulder and Set Screws 618.3-1969 Round Head Bolts 618.5-1971 Wood Screws . 618.6.1-1972 Slotted Head Cap Screws. Square Head Set Screws. ond Slotted Headless Set Screws 618.62-1972 Machine Screws and Machine Sc
23、rew Nuts . 618.6.3-1972 Slotted and Recessed Heod Tapping Screws and Metallic Olive Screws 618.6.4-1966 General Purpose Semi-Tubular Rivets. Full Tubular Rivets. Split Rivets and Rivet Cops 618.7-1966 Plow Bolts 618.9-1958 (R-1971) Track 6olts and Nuts 818.10-1963 Miniature Screws . 618.1 1-1961 Glo
24、ssary of Terms for Mechanical Fasteners . 818.12-1962 Screw and Washer Assemblies . Sems . 818.13-1965 Forged Eyebolts 618.15-1969 Wing Nuts. Thumb Screws. and Wing Screws . 618.17-1968 Lock Washers 627.1 -1965 Plain Washers 627.h1965 Beveled Woshers . 827.4-1967 General Purpose Rectongulor Uniform Section Retaining Rings 827.5-1969 BINDERS FOR HOLDING STANDARDS ARE AVAILABLE . A COMPLETE LIST OF AMERICAN NATIONAL STANDARDS PUBLISHED BY THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS IS OBTAINABLE UPON REQUEST . /- . K00023 i
