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1、 Reference number ISO 8764-2:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 8764-2 Second edition 2004-04-01 Assembly 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 vi
2、s et crous Tournevis pour vis empreinte cruciforme Partie 2: Spcifications gnrales, longueurs des lames et marquage des tournevis main ISO 8764-2:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but sh
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5、 ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electro
6、nic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org
7、 Web www.iso.org Published in Switzerland ii ISO 2004 All rights reserved ISO 8764-2:2004(E) ISO 2004 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internatio
8、nal Standards is normally carried out through ISO technical committees. Each member body interested in a subject for 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
9、, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical com
10、mittees is to prepare International Standards. Draft International Standards adopted by the technical committees are 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
11、possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible 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,
12、pliers and nippers. This second edition cancels and replaces the first edition (ISO 8764-2:1992), which has been technically 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” beco
13、mes “forme”. ISO 8764 consists of the following parts, under the general title Assembly tools for screws and nuts Screwdrivers for cross-recessed head screws: Part 1: Driver tips Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers -,-,- -,-,- INTERNATIONAL STAND
14、ARD ISO 8764-2:2004(E) ISO 2004 All rights reserved 1 Assembly tools for screws and nuts Screwdrivers for cross- recessed head screws Part 2: General requirements, lengths of blades and marking of hand-operated screwdrivers 1 Scope This part of ISO 8764 specifies general requirements, lengths of bla
15、des 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 Screwdrivers for cross-recessed head screws are listed under number 106 in ISO 1703:1983. 2 Normative references The followi
16、ng 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 referenced document (including any amendments) applies. ISO 272, Fasteners Hexagon products Widths across flats ISO
17、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 screws Part 1: Driver tips 3 General requirements The material, shape and finish of the handle shall ensure use under n
18、ormal 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 according to the sizes of tip forms PH and PZ of the screwdrivers as defined in ISO 8764-1. Two series of lengths
19、are provided. NOTE Figures 1 and 2 are given as examples and are not intended to affect the manufacturers design. -,-,- ISO 8764-2:2004(E) 2 ISO 2004 All rights reserved Table 1 Lengths of screwdriver blades for cross-recessed head screws Dimensions in millimetres l Tip sizes for driver forms PH and
20、 PZ 5 0 + No. Series A Series B 0 25 (35) 60 1 25 (35) 75 (80) 2 25 (35) 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 shal
21、l be in accordance with ISO 272 and ISO 4759-1. The dimensions hmin is determined by the formula min 0,5 .hs= Figure 1 Screwdriver Figure 2 Hexagonal driver near the handle -,-,- ISO 8764-2:2004(E) ISO 2004 All rights reserved 3 5 Designation EXAMPLE 1 Designation of a screwdriver, series A, tip for
22、m 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 under normal conditions of use. Indication
23、of the blade length is optional, but when given it shall correspond to the nominal length given in Table 1. ISO 8764-2:2004(E) 4 ISO 2004 All rights reserved Bibliography 1 ISO 1703, Assembly tools for screws and nuts Nomenclature 2 ISO 4757, Cross recesses for screws -,-,- -,-,- ISO 8764-2:2004(E) ICS 25.140.30 Price based on 4 pages ISO 2004 All rights reserved -,-,-