7379 (ISO International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAR OPrAHM3AUMA NO CTAHAAPT3AUWW-ORGANISATION INTERNATIONALE DE NORMALISATION Hexagon socket head shoulder screws Vis de centrage a tete cylindrique a six pans creux et a bout filete reduit First edition - 1983-10-01 UDC 621.882.215.6 Ref. No. 1SO 7379-1983 (E) Descriptors : fasteners, screws, socket head screws, dimensions, specifications, designation, tolerances of position. Price based on 5 pages Copyright International Organization for Standardization g permitted without license from IHS Not for Resale Foreword ISo (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of developing International Standards is carried out through ISo technical committees. Every member body interested in a subject for which a technical committee has been authorized has the and non-governmental, in liaison with iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the IsO Councit. International Standard ISO 7379 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 member bodies of the following countries: Australia Germany, F.R. New Zeatand Belgium Hungary Norway Brazil India Romania China Italy South Africa, Rep. of Czechoslovakia Spain Japan Denmark Korea, Dem. P. Rep. of USA Egypt, Arab Rep. of Korea, Rep. of USSR Mexico Finland The member bodies of the following countries expressed disapproval of the document on technical grounds: Ireland Netherlands Switzerland United Kingdom International Organization for Standardization, 1983 Printed in Switzerland Copyright International Organization for Standardization d without license from IHS Not for Resale ISO 7379-1983 (E) INTERNATIONAL STANDARD Hexagon socket head shoulder screws 1 Scope and field of application This International Standard lays down the specification for hexagon socket head shoulder screws with metric dimensions and nominal shoulder diameters from 6,5 to 25 mm inclusive. NOTE -- Particular attention is drawn to the note in clause 5 concerning the limitation on tensile testing. If other specifications are required, it is recommended that they should be selected from existing International Standards, for example ISO 261, ISO 888, ISO 898, ISO 965, ISO 1302, ISO 4759/1. 2References ISo 261, ISO general purpose metric screw threads - General plan. Iso 888, Bolts, screws and studs -- Nominal lengths, and thread lengths for general purpose bolts. Iso 898, Mechanical properties of fasteners. Iso 965, Iso general purpose metric screw threads - Tolerances. Iso 1302, Technical drawings -- Method of indicating surface texture on drawings. Iso 3269, Fasteners - Acceptance inspection.1) Iso 4042, Threaded components -- Electroplated coatings components. 1) ISo 4755, Fasteners - Thread undercuts for external metric /SO threads. grades A, B and C. 1) At present at the stage of draft. Vot for Resal