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    BS EN ISO 7046-1-2011 Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Steel of property class 4 8《H型或Z型十字槽埋头螺钉(普通头型) A级产品 性能等级为4.pdf

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    BS EN ISO 7046-1-2011 Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Steel of property class 4 8《H型或Z型十字槽埋头螺钉(普通头型) A级产品 性能等级为4.pdf

    1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 7046-1:2011Countersunk flat head screws(common head style) withtype H or type Z cross recess Product grade APart 1: Steel of property class 4.8 (ISO7046-1:2011)BS EN IS

    2、O 7046-1:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 7046-1:2011. It supersedes BS EN ISO 7046-1:1994 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FME/9/3, Fasteners - Product Standards.A list of org

    3、anizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011 ISBN 978 0 580 72976 8 ICS 21.060.10 Compliance with a British Standa

    4、rd cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2011.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7046-1 Se

    5、ptember 2011 ICS 21.060.10 Supersedes EN ISO 7046-1:1994English Version Countersunk flat head screws (common head style) with type H or type Z cross recess - Product grade A - Part 1: Steel of property class 4.8 (ISO 7046-1:2011) Vis mtaux tte fraise empreinte cruciforme de type H ou de type Z - Gra

    6、de A - Partie 1: Acier de classe de qualit 4.8 (ISO 7046-1:2011) Senkschrauben (Einheitskopf) mit Kreuzschlitz Form H oder Form Z - Produktklasse A - Teil 1: Stahl mit Festigkeitsklasse 4.8 (ISO 7046-1:2011) This European Standard was approved by CEN on 8 August 2011. CEN members are bound to comply

    7、 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 national standards may be obtained on application to the CEN-CENELEC M

    8、anagement 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 language and notified to the CEN-CENELEC Management Centre has the same

    9、 status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Por

    10、tugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any mean

    11、s reserved worldwide for CEN national Members. Ref. No. EN ISO 7046-1:2011: EBS EN ISO 7046-1:2011EN ISO 7046-1:2011 (E) 3 Foreword This document (EN ISO 7046-1:2011) has been prepared by Technical Committee ISO/TC 2 “Fasteners“ in collaboration with Technical Committee CEN/TC 185 “Fasteners” the se

    12、cretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2012, and conflicting national standards shall be withdrawn at the latest by March 2012. Attention is drawn

    13、 to the possibility that some of the elements 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 7046-1:1994. According to the CEN/CENELEC Internal Regulations, the nati

    14、onal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,

    15、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 7046-1:2011 has been approved by CEN as a EN ISO 7046-1:2011 without any modification. BS EN ISO 7046-1:2011ISO 7046-1:2011(E) ISO 2011 All rights reserved ii

    16、iForeword 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 for which a

    17、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 all matter

    18、s 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 committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulat

    19、ed 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 responsible

    20、 for identifying any or all such patent rights. ISO 7046-1 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 11, Fasteners with metric external thread. This second edition cancels and replaces the first edition (ISO 7046-1:1994), of which it constitutes a minor revision. ISO 7

    21、046 consists of the following parts, under the general title Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A: Part 1: Steel screws of property class 4.8 Part 2: Steel screws of property class 8.8, stainless steel screws and non-ferrous metal screws

    22、 BS EN ISO 7046-1:2011BS EN ISO 7046-1:2011INTERNATIONAL STANDARD ISO 7046-1:2011(E) ISO 2011 All rights reserved 1Countersunk flat head screws (common head style) with type H or type Z cross recess Product grade A Part 1: Steel screws of property class 4.8 1 Scope This part of ISO 7046 specifies th

    23、e characteristics of countersunk flat head screws with threads from M1,6 to M10 inclusive, of product grade A and property class 4.8, and with type H or type Z cross recess. If, in special cases, specifications other than those listed in this part of ISO 7046 are required, they can be selected from

    24、existing International Standards, for example ISO 261, ISO 888, ISO 898-1 and ISO 965-2. 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

    25、of the referenced document (including any amendments) applies. ISO 225, Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions ISO 261, ISO general purpose metric screw threads General plan ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel Par

    26、t 1: Bolts, screws and studs with specified property classes Coarse thread and fine pitch thread ISO 965-2, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose external and internal screw threads Medium quality ISO 3269, Fasteners Acceptance inspection ISO

    27、 4042, Fasteners Electroplated coatings ISO 4757, Cross recesses for screws ISO 4759-1, Tolerances for fasteners Part 1: Bolts, screws, studs and nuts Product grades A, B and C ISO 6157-1, Fasteners Surface discontinuities Part 1: Bolts, screws and studs for general requirements ISO 8992, Fasteners

    28、General requirements for bolts, screws, studs and nuts BS EN ISO 7046-1:2011ISO 7046-1:2011(E) 2 ISO 2011 All rights reserved3 Dimensions See Figure 1 and Table 1. Symbols and descriptions of dimensions are specified in ISO 225. The shank diameter is approximately equal to the pitch diameter or equa

    29、l to the permissible major thread diameter. a) Cross recess type H b) Cross recess type Z Key 1 as-rolled end 2 edge (rounded or flat) Figure 1 BS EN ISO 7046-1:2011ISO 7046-1:2011(E) ISO 2011 All rights reserved 3Table 1 Dimensions Dimensions in millimetres Thread, d M1,6 M2 M2,5 M3 (M3,5)aM4 M5 M6

    30、 M8 M10 Pb0,35 0,4 0,45 0,5 0,6 0,7 0,8 1 1,25 1,5 a max. 0,7 0,8 0,9 1 1,2 1,4 1,6 2 2,5 3 b min. 25 25 25 25 38 38 38 38 38 38 Theoretical max. 3,6 4,4 5,5 6,3 8,2 9,4 10,4 12,6 17,3 20 nom. = max. 3,0 3,8 4,7 5,5 7,30 8,40 9,30 11,30 15,80 18,30dkcActual min. 2,7 3,5 4,4 5,2 6,94 8,04 8,94 10,87

    31、15,37 17,78kcnom. = max. 1 1,2 1,5 1,65 2,35 2,7 2,7 3,3 4,65 5 r max. 0,4 0,5 0,6 0,8 0,9 1 1,3 1,5 2 2,5 x max. 0,9 1 1,1 1,25 1,5 1,75 2 2,5 3,2 3,8 Recess no. 0 1 2 3 4 m ref. 1,6 1,9 2,9 3,2 4,4 4,6 5,2 6,8 8,9 10 max. 0,9 1,2 1,8 2,1 2,4 2,6 3,2 3,5 4,6 5,7 Type H Penetration min. 0,6 0,9 1,4

    32、1,7 1,9 2,1 2,7 3,0 4,0 5,1 Cross recess (Series 1, deepd) m ref. 1,6 1,9 2,8 3 4,1 4,4 4,9 6,6 8,8 9,8 max. 0,95 1,20 1,73 2,01 2,20 2,51 3,05 3,45 4,60 5,64 Type Z Penetration min. 0,70 0,95 1,48 1,76 1,75 2,06 2,60 3,00 4,15 5,19 laenom. min. max. Approximate mass, in kilograms per 1 000 pieces (

    33、 = 7,85 kg/dm3) (for information only) 3 2,8 3,2 0,058 0,101 0,176 4 3,76 4,24 0,069 0,119 0,206 0,291 5 4,76 5,24 0,081 0,137 0,236 0,335 0,573 0,825 6 5,76 6,24 0,093 0,152 0,266 0,379 0,633 0,903 1,24 8 7,71 8,29 0,116 0,193 0,326 0,467 0,753 1,06 1,48 2,38 10 9,71 10,29 0,139 0,231 0,386 0,555 0

    34、,873 1,22 1,72 2,73 5,68 12 11,65 12,35 0,162 0,268 0,446 0,643 0,993 1,37 1,96 3,08 6,32 9,54 (14) 13,65 14,35 0,185 0,306 0,507 0,731 1,11 1,53 2,2 3,43 6,96 10,6 16 15,65 16,35 0,208 0,343 0,567 0,82 1,23 1,68 2,44 3,78 7,6 11,6 20 19,58 20,42 0,417 0,687 0,996 1,47 2 2,92 4,48 8,88 13,6 25 24,58

    35、 25,42 0,838 1,22 1,77 2,39 3,52 5,36 10,5 16,1 30 29,58 30,42 1,44 2,07 2,78 4,12 6,23 12,1 18,7 35 34,5 35,5 2,37 3,17 4,72 7,11 13,7 21,2 40 39,5 40,5 3,56 5,32 7,98 15,3 23,7 45 44,5 45,5 5,92 8,86 16,9 26,2 50 49,5 50,5 6,52 9,73 18,5 28,8 BS EN ISO 7046-1:2011ISO 7046-1:2011(E) 4 ISO 2011 All

    36、rights reservedTable 1 (continued) Dimensions in millimetres Thread, d M1,6 M2 M2,5 M3 (M3,5)aM4 M5 M6 M8 M10 laenom. min. max. Approximate mass, in kilograms per 1 000 pieces ( = 7,85 kg/dm3) (for information only) (55) 54,05 55,95 10,6 20,1 31,3 60 59,05 60,95 11,5 21,7 33,8 NOTE Preferred lengths

    37、 are those between the solid, bold, continuous lines. aSizes in parentheses should be avoided if possible. bP is the pitch of the thread. cSee ISO 7721. dSee ISO 7721-2. eScrews with nominal lengths above the bold, discontinuous line are threaded up to the head; b = l (k + a).4 Specifications and re

    38、ference International Standards See Table 2. Table 2 Specifications and reference International Standards Material Steel General requirements International Standard ISO 8992 Tolerance class 6g Thread International Standard ISO 261, ISO 965-2 Property class 4.8 Mechanical property International Stand

    39、ard ISO 898-1 Product grade A Tolerance International Standard ISO 4759-1 Cross recess International Standard ISO 4757 As processed Requirements for electroplating are specified in ISO 4042. Finish Coating Additional requirements or other finishes or coatings shall be agreed between the supplier and

    40、 the purchaser. Surface integrity Limits for surface discontinuities are specified in ISO 6157-1. Acceptability Acceptance inspection is specified in ISO 3269. 5 Designation EXAMPLE A cross-recessed countersunk flat head screw with thread M5, nominal length l = 20 mm, property class 4.8 and cross re

    41、cess type Z is designated as follows: Countersunk flat head screw ISO 7046-1 - M5 20 - 4.8 - Z BS EN ISO 7046-1:2011ISO 7046-1:2011(E) ISO 2011 All rights reserved 5Bibliography 1 ISO 888, Bolts, screws and studs Nominal lengths, and thread lengths for general purpose bolts 2 ISO 7721, Countersunk h

    42、ead screws Head configuration and gauging 3 ISO 7721-2, Countersunk flat head screws Part 2: Penetration depth of cross recesses This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-relat

    43、ed publications, information and services. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.British Standards Institution (BSI)raising standards worldwideBSI Group Headquarters389 Chiswick High Road London W4 4AL UKTel +44 (0)20 8996

    44、9001Fax +44 (0)20 8996 Standards are updated by amendment or revision. Users of British Stan-dards should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and serv-ices. We would be grateful if anyone finding an inacc

    45、uracy or ambiguity whileusing this British Standard would inform the Secretary of the technical com-mittee responsible, the identity of which can be found on the inside frontcover.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers Members an individual updating service called PLUS which ens

    46、uresthat subscribers automatically receive the latest editions of standards.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standardsYou may buy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, internati

    47、onal and foreign standards publicationscan be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response to orders for international standards, it is BSI policy tosupply the BSI implementation of those that have been publishedas British Standards, unless o

    48、therwise requested.Information on standardsBSI provides a wide range of information on national, Europeanand international standards through its Knowledge Centre.Tel: +44 (0)20 8996 7004 Fax: +44 (0)20 8996 7005Email: Various BSI electronic information services are also available whichgive details o

    49、n all its products and services. Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048Email: BSI Subscribing Members are kept up to date with standardsdevelopments and receive substantial discounts on the purchase priceof standards. For details of these and other benefits contact Membership Ad-ministrat


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