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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 10510:2000 The
2、European Standard EN ISO 10510:1999 has the status of a British Standard ICS 21.060.10; 21.060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Tapping screw and washer assemblies with plain washers This British Standard, having been prepared under the direction of the Engin
3、eering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 January 2000 BSI 01-2000 ISBN 0 580 35011 8 BS EN ISO 10510:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the English language
4、version of EN ISO 10510:1999. It is identical with ISO 10510:1999. The UK participation in its preparation was entrusted by Technical Committee FME/9, Bolts, nuts and accessories, to Subcommittee FME/9/2, Slotted and recessed head screws, which has the responsibility to: aid enquirers to understand
5、the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this S
6、ubcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which
7、 implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the
8、 necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title
9、 page, the EN ISO foreword page, the ISO title page, page ii, pages 1 to 4, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. EN ISO 10510:1999 A Reference number ISO 10510:1999(E) INTERNATIONAL STANDARD ISO 10510 Fir
10、st edition 1999-08-01 Tapping screw and washer assemblies with plain washers Vis tle rondelle plate incorpore EN ISO 10510:1999 )E(9991:01501 OSI ii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work
11、of preparing International 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-government
12、al, in liaison with ISO, 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 3. Draft I
13、nternational 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. International Standard ISO 10510 was prepared by Technical Committee ISO/TC 2, F
14、asteners. EN ISO 10510:1999 DRADNATS LANOITANRETNI OSI)E(9991:01501 OSI 1 Tapping screw washer assemblies with plain washers 1 Scope This International Standard specifies the requirements for tapping screw and plain washer assemblies with spaced threads from ST2,2 to ST9,5 inclusive, flat seating he
15、ads and mechanical properties in accordance with ISO 2702. The plain washers are captive, i.e. prevented from disassembly and free to rotate. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International
16、 Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indica
17、ted below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 1479:1983, Hexagon head tapping screws. ISO 1481:1983, Slotted pan head tapping screws. ISO 2702:1992, Heat-t
18、reated steel tapping screws Mechanical properties. ISO 6507-1:1997, Metallic materials Vickers hardness test Part 1: Test method. ISO 7049:1983, Cross recessed pan head tapping screws. ISO 10669:1999, Plain washers for tapping screw and washer assemblies Normal and large series Product grade A. EN I
19、SO 10510:1999 )E(9991:01501 OSI OSI 2 3 Dimensions The dimensions of the assembled screws shall conform to the designated product standards for loose parts with the following exceptions: Screws shall have a shank of such diameter (ds) that the washer with dimensions in accordance with ISO 10669 is f
20、ree to rotate. The permitted distance from the underside of the head to the first full thread is increased by the maximum permitted thickness of the washer as specified in ISO 10669. The transition diameter da shall be reduced by the difference between the nominal and thread rolling diameter. For th
21、e dimensions see Figures 1 to 3 and Table 1. Figure 1 Hexagon head tapping screw with cone end Figure 2 Pan head tapping screw with flat end EN ISO 10510:1999 OSI)E(9991:01501 OSI 3 Figure 3 Transition diameter da and shank diameter ds Table 1 Dimensions Dimensions in millimetres Thread sizeWasher d
22、imensionsa abdaNormal Series Type N Large Series Type L max.max.h nom. d2 max. h nom. d2 max. ST2,2 ST2,9 ST3,5 0,8 1,1 1,3 2,1 2,8 3,3 1 1 1 5 7 8 1 1 1 7 9 11 ST4,2 ST4,8 ST5,5 1,4 1,6 1,8 4,03 4,54 5,22 1 1 1,6 9 10 12 1 1,6 1,6 12 15 15 ST6,3 ST8 ST9,5 1,8 2,1 2,1 5,93 7,76 9,43 1,6 1,6 1,6 14 1
23、6 20 1,6 2 2,5 18 24 30 a Dimensions extracted from ISO 10669 for information only. b Dimension a measured after assembly, with washer in contact with the screw bearing face or underhead radius. 4 Specifications and reference standards The mechanical properties of the screw component of the tapping
24、screw and washer assembly shall be those specified in ISO 2702. Following assembly and heat treatment the washer component shall have a hardness of 90 HV to 320 HV. Vickers hardness testing shall be carried out in accordance with ISO 6507-1. Test force: HV 10 for nominal thickness h 1,2 mm Test forc
25、e: HV 30 for nominal thickness h . 1,2 mm Prior to assembly, suitable precautions shall be taken to prevent detrimental case hardening of the washer during heat treatment, e.g. copper plating. EN ISO 10510:1999 )E(9991:01501 OSI OSI 4 5 Designation The designation of a tapping screw and washer assem
26、bly shall consist of: the description of the component; reference to this International Standard; the characteristics of the screw component; the screw symbol indicating the type of screw (see Table 2); the washer symbol indicating the type of washer (see Table 3). Table 2 Symbols for the screws Ref
27、erence StandardSymbol ISO 1479Hexagon head tapping screwsS1 ISO 7049Cross recessed pan head tapping screwsS2 ISO 1481Slotted pan head tapping screwsS3 Table 3 Symbols for the washers Reference StandardOutside DiameterSymbol ISO 10669Plain Washers for tapping screw and washer assemblies NormalN Large
28、L EXAMPLE 1A hexagon head tapping screw and washer assembly with a screw of size ST4,2 3 16, with cone end (C) in accordance with ISO 1479 (symbol S1), and a plain washer, normal series, in accordance with ISO 10669 (symbol N) is designated as follows: Tapping screw and washer assembly ISO 10510 - S
29、T4,2 33 16 - C - S1 - N EXAMPLE 2A cross recessed pan head tapping screw and washer assembly with a screw of size ST 4,2 3 16, with cone end (C) and recess type Z in accordance with ISO 7049 (symbol S2) and a plain washer, normal series, according to ISO 10669 (symbol N) is designated as follows: Ta
30、pping screw and washer assembly ISO 10510 - ST4,2 33 16 - C - Z - S2 - N EN ISO 10510:1999 EN ISO 10510:1999 BS EN ISO 10510:2000 BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
31、 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the i
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