SANS 8764-2-2009 Assembly tools for screws and nuts - Screwdrivers for cross-recessed head screws Part 2 General requirements lengths of blades and marking of hand-operated screwdr.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22864-4 SANS 8764-2:2009Edition 1ISO 8764-2:2004Edition 2SOUTH AFRICAN NATIONAL STANDARD Assembly tools for screws and nuts Screwdrivers f

4、or cross-recessed head screws Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers This national standard is the identical implementation of ISO 8764-2:2004 and is adopted with the permission of the International Organization for Standardization. Published by SAB

5、S Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 8764-2:2009 Edition 1 ISO 8764-2:2004 Edition 2 Table of changes Change No. Date Scope National foreword This South African standard was approved by Nati

6、onal Committee SABS TC 1080, Handheld non-electrical tools for general purpose use, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in September 2009. Reference numberISO 8764-2:2004(E)ISO 2004INTERNA

7、TIONAL STANDARD ISO8764-2Second edition2004-04-01Assembly tools for screws and nuts Screwdrivers for cross-recessed head screws Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers Outils de manuvre pour vis et crous Tournevis pour vis empreinte cruciforme Partie

8、 2: Spcifications gnrales, longueurs des lames et marquage des tournevis main SANS 8764-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8764-2:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with A

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13、. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2004 All rights reservedSANS 8764-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8764-2:2004(E) ISO 2004 All rights r

14、eserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject fo

15、r which a technical committee has been established 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. ISO collaborates closely with the International Electrotechnical Commission (IEC) on

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17、e circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held r

18、esponsible for identifying any or all such patent rights. ISO 8764-2 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 10, Assembly tools for screws and nuts, pliers and nippers. This second edition cancels and replaces the first edition (ISO 8764-2:1992), which has been te

19、chnically revised as follows: a designation has been added; in the English version, the term “point” becomes “tip” and “type” becomes “form”; in the French version, the term “type” becomes “forme”. ISO 8764 consists of the following parts, under the general title Assembly tools for screws and nuts S

20、crewdrivers for cross-recessed head screws: Part 1: Driver tips Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers SANS 8764-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SANS 8764-2:2009This s t

21、andard may only be used and printed by approved subscription and freemailing clients of the SABS .INTERNATIONAL STANDARD ISO 8764-2:2004(E) ISO 2004 All rights reserved 1Assembly tools for screws and nuts Screwdrivers for cross-recessed head screws Part 2: General requirements, lengths of blades and

22、 marking of hand-operated screwdrivers 1 Scope This part of ISO 8764 specifies general requirements, lengths of blades and marking of hand-operated screwdrivers for H and Z cross-recessed head screws, as specified in ISO 4757. The specifications for blade tips are given in ISO 8764-1. NOTE Screwdriv

23、ers for cross-recessed head screws are listed under number 106 in ISO 1703:1983. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the r

24、eferenced document (including any amendments) applies. ISO 272, Fasteners Hexagon products Widths across flats ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 8764-1, Assembly tools for screws and nuts Screwdrivers for cross-recessed head scre

25、ws Part 1: Driver tips 3 General requirements The material, shape and finish of the handle shall ensure use under normal conditions. The handle and the blade shall show neither roughness nor faults which could cause accidents during use. 4 Blade lengths The lengths of blades are specified in Table 1

26、 according to the sizes of tip forms PH and PZ of the screwdrivers as defined in ISO 8764-1. Two series of lengths are provided. NOTE Figures 1 and 2 are given as examples and are not intended to affect the manufacturers design. SANS 8764-2:2009This s tandard may only be used and printed by approved

27、 subscription and freemailing clients of the SABS .ISO 8764-2:2004(E) 2 ISO 2004 All rights reservedTable 1 Lengths of screwdriver blades for cross-recessed head screws Dimensions in millimetres l Tip sizes for driver forms PH and PZ 50+No. Series A Series B 0 25 (35) 60 1 25 (35) 75 (80) 2 25 (35)

28、100 3 150 4 200 NOTE The dimensions in parentheses are non-preferred. From tip size 2, screwdrivers with hexagonal driver near the handle are permitted (see Figure 2); widths across flats s and the corresponding tolerances shall be in accordance with ISO 272 and ISO 4759-1. The dimensions hminis det

29、ermined by the formula min0,5 .hs= Figure 1 Screwdriver Figure 2 Hexagonal driver near the handle SANS 8764-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8764-2:2004(E) ISO 2004 All rights reserved 35 Designation EXAMPLE 1 Designa

30、tion of a screwdriver, series A, tip form PH, size 2: Screwdriver ISO 8764-2 A PH2 EXAMPLE 2 Designation of a screwdriver, series B, tip form PZ, size 3: Screwdriver ISO 8764-2 B PZ3 6 Marking The marking of the form of tip, PZ or PH, the tip size and the trademark shall be legible and indelible und

31、er normal conditions of use. Indication of the blade length is optional, but when given it shall correspond to the nominal length given in Table 1. SANS 8764-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .ISO 8764-2:2004(E) 4 ISO 2004

32、All rights reservedBibliography 1 ISO 1703, Assembly tools for screws and nuts Nomenclature 2 ISO 4757, Cross recesses for screws SABSSANS 8764-2:2009This s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .SABS Standards Division The objective of the

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