1、February 2017 English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 11.040.70!%an“2627597www.din.deD
2、IN EN ISO 11381Ophthalmic optics Spectacle frames Screw threads (ISO 11381:2016);English version EN ISO 11381:2016,English translation of DIN EN ISO 11381:2017-02Augenoptik Brillenfassungen Schraubgewinde (ISO 11381:2016);Englische Fassung EN ISO 11381:2016,Englische bersetzung von DIN EN ISO 11381:
3、2017-02Optique ophtalmique Montures de lunettes Filetages (ISO 11381:2016);Version anglaise EN ISO 11381:2016,Traduction anglaise de DIN EN ISO 11381:2017-02SupersedesDIN EN ISO 11381:199608www.beuth.deDocument comprises 12 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-languag
4、e original shall be considered authoritative.02.17 DIN EN ISO 11381:2017-02 2 A comma is used as the decimal marker. National foreword This document (EN ISO 11381:2016) has been prepared by Technical Committee ISO/TC 172 “Optics and photonics”, Subcommittee SC 7 “Opthalmic optics and instruments” in
5、 collaboration with Technical Committee CEN/TC 170 “Ophthalmic optics” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Feinmechanik und Optik (DIN Standards Committee Optics and Precision Mechanics), Working Committee NA 027-01-08 AA Augen
6、optik, Working Group Brillenfassungen. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 965-3 DIN ISO 965-3 ISO 1502 DIN ISO 1502 Amendments This standard differs from DIN EN ISO 11381:1996-08 as follows: a) the title has been corrected;
7、 b) normative references have been updated; c) the text of the revised version ISO 11381:2016 has been adopted in its entirety. Previous editions DIN 5347: 1943-09, 1958-12, 1975-12 DIN EN ISO 11381: 1996-08 DIN EN ISO 11381:2017-02 3 National Annex NA (informative) Bibliography DIN ISO 965-3, ISO g
8、eneral purpose metric screw threads Tolerances Part 3: Deviations for constructional threads DIN ISO 1502, ISO general purpose metric screw threads Gauges and gauging DIN EN ISO 11381:2017-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11381 October 20
9、16 ICS 11.040.70; 21.040.10 Supersedes EN ISO 11381:1996English Version Ophthalmic optics - Spectacle frames - Screw threads(ISO 11381:2016) Optique ophtalmique - Montures de lunettes - Filetages (ISO 11381:2016) Augenoptik - Brillenfassungen - Schraubgewinde(ISO 11381:2016) This European Standard w
10、as approved by CEN on 5 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such
11、 national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own
12、language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gr
13、eece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUN
14、G CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11381:2016 EEuropean foreword .31 Scope .52 Normative references 53 Screw threads 54 Definitions and tolera
15、nces on lengths of screws . 64.1 Flat head machine screws . 64.2 Countersunk head screws . 64.3 Fillister countersunk head screws 64.4 Pan and cheese head screws . 74.5 Tolerance on length . 75 Screwing taps .76 Gauges7Annex A (informative) Use and application of screw threads 8Contents PageDIN EN I
16、SO 11381:2017-02 EN ISO 11381:2016 (E)2Foreword . 4European foreword This document (EN ISO 11381:2016) has been prepared by Technical Committee ISO/TC 172 “Optics and photonics” in collaboration with Technical Committee CEN/TC 170 “Ophthalmic optics” the secretariat of which is held by DIN. This Eur
17、opean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2017, and conflicting national standards shall be withdrawn at the latest by April 2017. Attention is drawn to the possibility that some of the elemen
18、ts of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 11381:1996. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followin
19、g countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw
20、ay, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 11381:2016 has been approved by CEN as EN ISO 11381:2016 without any modification. DIN EN ISO 11381:2017-02 EN ISO 11381:2016 (E)3 ForewordISO (the Interna
21、tional 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 for which a technical committee has be
22、en 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 all matters of electrotechnical stan
23、dardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accorda
24、nce with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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 responsible for identifying any or all such patent rights. Details o
25、f any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorse
26、ment.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.Th
27、e committee responsible for this document is ISO/TC 172, Optics and photonics, Subcommittee SC 7, Ophthalmic optics and instruments.This second edition cancels and replaces the first edition (ISO 11381:1994), of which it constitutes a minor revision.The following changes have been done: correction o
28、f the title; update of the normative references.DIN EN ISO 11381:2017-02 EN ISO 11381:2016 (E)4 1 ScopeThis International Standard specifies requirements for ISO metric screw threads for use with spectacle frames. Provision is made for screw threads of the following nominal sizes: S0,8 0,2; M1,0 0,2
29、5; M1,2 0,25; M1,4 0,3; M1,6 0,35 and M2,0 0,4 and for related taps and gauges.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated
30、references, the latest edition of the referenced document (including any amendments) applies.ISO 529, Short machine taps and hand tapsISO 965-3, ISO general purpose metric screw threads Tolerances Part 3: Deviations for constructional screw threadsISO 1501, ISO miniature screw threadsISO 1502, ISO g
31、eneral-purpose metric screw threads Gauges and gauging3 Screw threadsThe screw threads shall be either of the following: ISO metric threads of size S0,8 0,2, complying with the requirements of ISO 1501; ISO metric screw threads of sizes M1,0 0,25; M1,2 0,25; M1,4 0,3; M1,6 0,35 or M2,0 0,4, complyin
32、g with the requirements of ISO 965-3.The class of fit shall be as given in Table 1.Table 1 Class of fit of screw threadsScrew threadClass of fitNut ScrewS0,8 0,2 4H6 5h3M1,0 0,255H6h or 6gM1,2 0,25M1,4 0,3M1,6 0,356HM2,0 0,4The designation of a screw thread consists of a capital letter indicating th
33、e thread series, followed by the value of the nominal diameter and of the pitch, expressed in millimetres, and separated by a Cross (). The designation of the class of fit consists of a figure indicating the tolerance grade and a letter indicating the tolerance position, capital for nuts and lower c
34、ase for bolts. The screw thread designation is separated from the class of fit by a dash.DIN EN ISO 11381:2017-02 EN ISO 11381:2016 (E)5 EXAMPLE M1,6 0,35 6H/6hThread 1,6 mm nominal diameter in the coarse thread seriesTolerance class for boltPitchTolerance class for nut4 Definitions and tolerances o
35、n lengths of screws4.1 Flat head machine screwsThe length of screws with flat heads is defined to be the distance from the underside surface of the head to the extreme end of the shank, including any chamfer, radius or cone point. See Figure 1.Figure 1 Flat head machine screws4.2 Countersunk head sc
36、rewsThe length of screws with countersunk heads is defined to be the distance from the upper surface of the head to the extreme end of the shank, including any chamfer, radius, or cone point. See Figure 2.Figure 2 Countersunk head screws4.3 Fillister countersunk head screwsThe length of screws with
37、raised countersunk heads is defined to be the distance from the underside surface of the head to the extreme end of the shank, including any chamfer, radius, or cone point. See Figure 3.Figure3 Fillister countersunkheadscrewsDIN EN ISO 11381:2017-02 EN ISO 11381:2016 (E)6 4.4 Pan and cheese head scr
38、ewsThe length of screws with pan or cheese heads is defined to be the distance from the underside of the head to the extreme end of the shank, including any chamfer, radius, or cone point. See Figure 4.Figure 4 Pan and cheese head screws4.5 Tolerance on lengthThe nominal length of the screw, as defi
39、ned in 4.1, 4.2 or 4.3 as appropriate, shall comply with the requirements of the purchaser, subject to a tolerance of 0 mm to 0,15 mm.5 Screwing tapsScrewing taps for sizes M1,0 0,25; M1,2 0,25; M1,4 0,3; M1,6 0,35 and M2,0 0,4 shall comply with the requirements of ISO 529.NOTE Screwing taps of size
40、 S0,8 0,2 are not specified in any International Standard.6 GaugesGauges shall comply with the requirements of ISO 1502.DIN EN ISO 11381:2017-02 EN ISO 11381:2016 (E)7 Annex A (informative) Use and application of screw threadsScrew thread Use and applicationS0,8 0,2M1,0 0,25 PadM1,2 0,25M1,4 0,3 Joint and closing blockM1,6 0,35M2,0 0,4DIN EN ISO 11381:2017-02 EN ISO 11381:2016 (E)8
