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1、-_ International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONMEYHAPOHAR OPI-AHHBAUHR IlO CTAHAAFTH3AlWl.ORGANlSATlON INTERNATIONALE DE NORMALISATION Hexagon head tapping screws Vis B We B t&e hexagonale First edition - 1983-08-15 UDC 621.882.682.8 Descriptors : screw threads, hexagonal he
2、ad screws, tapping screws, dimensions. Ref. No. IS0 1479-1983 (E) Price based on 3 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:19:34 MDTNo reproduction or networking
3、 permitted without license from IHS -,-,- Foreword IS0 (the international Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of developing International Standards is carried out through IS0 technical committees. Every member body in
4、terested in a subject for which a technical committee has been authorized has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committ
5、ees are circulated to the member bodies for approval before their acceptance as International Standards by the IS0 Council. International Standard IS0 1479 was developed by Technical Committee ISO/TC 2, Fasteners, and was circulated to the member bodies in December 1981. It has been approved by the
6、member bodies of the following countries: Australia Austria Belgium Brazil Canada China Czechoslovakia Denmark Egypt, Arab Rep. Finland of France Netherlands Germany, F. R. New Zealand Hungary Norway India Poland Ireland Romania Italy South Africa, Rep. of Japan Sri Lanka Korea, Dem. P. Rep. of Swed
7、en Korea, Rep. of Switzerland Mexico USA The member bodies of the following countries expressed disapproval of the document on technical grounds : United Kingdom USSR This International Standard cancels and replaces IS0 Recommendation R 1479-1970, of which it constitutes a technical revision. 0 Inte
8、rnational Organization for Standardization, 1993 0 Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:19:34 MDTNo reproduction or networking permitted with
9、out license from IHS -,-,- INTERNATIONAL STANDARD IS0 1479-1993 (E) Hexagon head tapping screws 1 Scope and field of application This International Standard specifies the characteristics of hexagon head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive. 2 References IS0 225, Fasteners
10、 - Bolts, screws, studs and nuts - Symbols and designations of dimensions. IS0 1478, Tapping screws thread. IS 0 2702, Heat-treated steel tapping screws - Mechanical properties. IS0 3259, Fasteners - Acceptance inspection.1) IS0 4042, Threaded components - Electroplated coatings components. 1) IS0 4
11、75911,. Tolerances for fasteners - Part 1: Bolts, screws and nuts with thread diameters I,6 and 150 mm and product grades A, B and C. 1) At present at the stage of draft. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standar
12、ds 1/9972545001 Not for Resale, 04/28/2007 07:19:34 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 1479-1983 (EI 3 Dimensions Type c Type F Shape of indentation optional-, Dimensions in millimetres 1) P = pitch of the thread. 2) Distance from the underside of the head
13、to the first major diameter of the thread within the specified limits. 3) Length of incomplete thread. 4) Sizes with lengths marked with a dash (-1 in the table shall not be manufactured. 2 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA
14、Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:19:34 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 1479-1983 (El 4 Specifications and reference International Standards Material Thread Mechanical properties Tolerances Product grade International Standar
15、d Steel, according to IS0 2702 According to IS0 1478 According to IS0 2702 A IS0 4759/l Plain Finish .Acceptability Requirements for electroplating are covered in IS0 4042. If different electroplating requirements are desired or if requirements are needed for other finishes, they should be negotiate
16、d between customer and supplier. For acceptance procedure see IS0 3269. 5 Designation Example for the designation of a hexagon head tapping screw with thread size ST 3,5, nominal length ! = 16 mm and cone end type C: Tapping screw IS0 1479 - ST 3.5 x 16 - C 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 07:19:34 MDTNo reproduction or networking permitted without license from IHS -,-,-