tailieunhanh - Ebook ISO metric black hexagon bolts, screws and nuts — Specification

(BQ) Ebook ISO metric black hexagon bolts, screws and nuts — Specification gives the general dimensions and tolerances of black hexagon bolts, screws and nuts with ISO metric threads, in diameters from 5 mm to 68 mm inclusive. Mechanical properties are included for steel bolts, screws and ordinary plain nuts, which may be produced by hot or cold forging at the option of the manufacturer. | BRITISH STANDARD BS 4190 2001 ISO metric black hexagon bolts screws and nuts Specification ICS NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW I III BS 4190 2001 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee FME 9 bolts nuts and accessories QA and hose clamps upon which the following bodies were represented British Constructional Steelwork Association Ltd. Confederation of British Forgers Electricity Association Society of Motor Manufacturers and Traders Limited UK Steel Association This British Standard having been prepared under the direction of the Engineering Sector Board was published under the authority of the Standards Committee and comes into effect on 15 February 2001 BSI 02-2001 First published October 1967 Amendments issued since publication Second edition February 2001 Amd. No. Date Comments The following BSI references relate to the work on this British Standard Committee reference FME 9 Draft for comment 00 711041 DC ISBN 0 580 33263 2 BS 4190 2001 Contents Page Committees responsible Inside front cover Foreword iii 1 Scope 1 2 Normative references 1 3 Finish 2 4 General dimensions 2 5 Length of bolts and screws 2 6 Ends of bolts and screws 3 7 Screw threads 3 8 Length of thread 4 9 Nuts Squareness of thread to face 6 10 Chamfering and facing 6 11 Diameter of shank of bolt 8 12 Drilled bolts and split pin holes 8 13 Strength grade designation system for steel bolts and screws 10 14 Material and manufacture of steel bolts and screws 10 15 Mechanical properties of bolts and screws 10 16 Strength grade designation system for steel nuts 10 17 Material and manufacture of steel nuts 11 18 Mechanical properties of steel nuts excluding thin nuts 11 19 Marking and identification 11 20 Inspection and testing 11 21 Complete designation for the purpose of an enquiry or order 12 Annex A normative Testing of mechanical properties of steel nuts