1、BRITISH STANDARDBS EN 3301:2007Aerospace series Bolts, T-head, close tolerance medium thread length in heat resisting steel FE-PM1708 (FV535), uncoated Classification: 1 000 MPa/550 CICS 49.030.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g
2、38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 3301:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2008 BSI 2008ISBN 978 0 580 60320 4National forewordThis British Standar
3、d is the UK implementation of EN 3301:2007.The UK participation in its preparation was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purpor
4、t to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN
5、3301 December 2007 ICS 49.030.20 English Version Aerospace series - Bolts, T-head, close tolerance medium thread length in heat resisting steel FE-PM1708 (FV535), uncoated - Classification: 1 000 MPa/550 C Srie arospatiale - Vis de prcision tte anti-rotation T filetage moyen en acier rsistant chaud
6、FE-PM1708 (FV535), non revtu - Classification : 1 000 MPa/550 C Luft- und Raumfahrt - T-Kopf-Paschauben mittlere Gewindelnge, aus hochwarmfestem Stahl FE-PM1708 (FV535), blank - Klasse: 1 000 MPa/550 C This European Standard was approved by CEN on 5 November 2007. CEN members are bound to comply wit
7、h 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 Management Ce
8、ntre 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 Management Centre has the same status as the offic
9、ial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slo
10、venia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CE
11、N national Members. Ref. No. EN 3301:2007: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Required characteristics.4 4 Designation 8 5 Marking .8 6 Technical specification .8 EN 3301:20073 Foreword This document (EN 3301:2007) has been prepared by the Aerospace and Defence Industrie
12、s Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CE
13、N. 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 June 2008, and conflicting national standards shall be withdrawn at the latest by June 2008. Attention is drawn to the possibility that some of t
14、he 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. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement
15、this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and t
16、he United Kingdom. EN 3301:20074 1 Scope This standard specifies the dimensions of uncoated T-head bolts, close tolerance, with MJ-thread, medium thread length, in heat resisting steel FE-PM1708 for aerospace applications. Maximum test temperature of the parts is 550 C. These bolts are to be used in
17、 aerospace fastening systems mainly stressed in shearing force. 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 referenced documen
18、t (including any amendments) applies. ISO 3353-1, Aerospace Lead and runout threads Part 1: Rolled external threads. ISO 5855-1, Aerospace MJ threads Part 1: General requirements. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. EN 2424, Aerospace series Marking of aeros
19、pace products. EN 2493 1), Heat resisting steel FE-PM38 1 000 MPa Rm 1 140 MPa Bars Aerospace series. 2)EN 3302, Aerospace series Bolts in heat resisting steel FE-PM1708 (FV535) Classification: 1 000 MPa / 550 C Technical specification. 3)EN 4244, Aerospace series Heat resisting alloy FE-PM1708 Vacu
20、um arc remelted Hardened and tempered Bar a or D 200 mm 1 000 MPa Rm 1 140 MPa. 3)EN 4245, Aerospace series Heat resisting alloy FE-PM1708 Vacuum arc remelted As forged Forging stock De 300 mm. 3)3 Required characteristics 3.1 Configuration - Dimensions - Tolerances Configuration shall be in accorda
21、nce with the Figure 1. Dimensions, tolerances and masses shall conform to the Figure 1 and the Tables 1 and 2. Details of form, not stated are at the manufacturers option. 3.2 Material Heat resisting steel FE-PM38 according to EN 2493. 3.3 Surface treatment None. 1) Inactive for new design, see EN 4
22、244 and EN 4245. 2) Published as ASD Standard at the date of publication of this standard. 3) Published as ASD Prestandard at the date of publication of this standard. EN 3301:20075 3.4 Thread surface See Figure 1. Key 1 Rolled 2 Thread pitch- 3 Thread major diameter: max.: actual shank diameter min
23、us 0,025 mm min.: defined by 6h tolerance 4 R typical0,40,95 Identity marking 6 Lead thread ISO 3353-1 7 Thread runout ISO 3353-1 8 43 to 47 aTotal straightness with reference to nominal length N. bWhen the length of the shank is less than one time the nominal value of the shank diameter, D, the run
24、out is measured at a distance equal to half the actual shank length. cFor boIts having a shank length less than one time the nominal value of the shank diameter, D, the pitch diameter axis shall be used as datum. Figure 1 Configuration Table 1 Dimensions Dimensions in millimetres C D E K Q R S X Y C
25、ode Description a b max. min. f7 max. min. max. min. 0,5 max. min. max. min. 050 MJ50,8-4h6h 6,3 6,1 5 11,6 11,1 3,4 2,9 3,5 0,5 0,3 8,4 8,1 060 MJ61-4h6h 7,3 7,1 6 12,5 12,0 3,9 3,4 4,2 0,7 0,5 9,5 9,2 0,12070 MJ71-4h6h 8,4 8,2 7 13,9 13,4 4,5 4,0 5,2 0,7 0,5 10,5 10,2 080 MJ81-4h6h 9,4 9,2 8 14,5
26、14,0 5,0 4,5 6,2 0,7 0,5 11,5 11,2 0,002 100 MJ101,25-4h6h 11,2 11,0 10 17,0 16,5 5,8 5,3 7,9 0,8 0,6 13,3 13,0 0,0015 0,15aAccording to ISO 5855-1 and ISO 5855-2. bThe tolerance on the thread major diameter shall be modified as shown in the Figure 1. 0,8 0,8 Rolled 3,2EN 3301:20076 Table 2 Lengths
27、and masses Dimensions in millimetres Nominal diameter code 050 060 070 080 100 Length code L 0,2 N Mass a N Mass aN Mass aN Mass aN Mass a003 3 16,5 4,31 18,5 6,50 004 4 17,5 4,46 19,5 6,72 20,5 9,81 22 13,35 005 5 18,5 4,62 20,5 6,95 21,5 10,11 23 13,74 26,5 23,49 006 6 19,5 4,77 21,5 7,17 22,5 10,
28、40 24 14,13 27,5 24,10 007 7 20,5 4,92 22,5 7,38 23,5 10,71 25 14,53 28,5 24,72 008 8 21,5 5,07 23,5 7,60 24,5 11,01 26 14,91 29,5 25,32 009 9 22,5 5,22 24,5 7,83 25,5 11,31 27 15,31 30,5 25,94 010 10 23,5 5,37 25,5 8,04 26,5 11,61 28 15,70 31,5 26,55 011 11 24,5 5,53 26,5 8,26 27,5 11,91 29 16,09 3
29、2,5 27,17 012 12 25,5 5,69 27,5 8,49 28,5 12,21 30 16,48 33,5 27,77 013 13 26,5 5,84 28,5 8,71 29,5 12,51 31 16,88 34,5 28,38 014 14 27,5 5,99 29,5 8,92 30,5 12,81 32 17,28 35,5 28,99 015 15 28,5 6,15 30,5 9,13 31,5 13,11 33 17,65 36,5 29,61 016 16 29,5 6,30 31,5 9,37 32,5 13,41 34 18,05 37,5 30,22
30、017 17 30,5 6,45 32,5 9,59 33,5 13,71 35 18,44 38,5 30,83 018 18 31,5 6,60 33,5 9,81 34,5 14,01 36 18,84 39,5 31,45 019 19 32,5 6,75 34,5 10,03 35,5 14,31 37 19,22 40,5 32,06 020 20 33,5 6,91 35,5 10,25 36,5 14,61 38 19,62 41,5 32,67 021 21 34,5 7,07 36,5 10,47 37,5 14,91 39 20,01 42,5 33,28 022 22
31、35,5 7,22 37,5 10,69 38,5 15,21 40 20,40 43,5 33,90 023 23 36,5 7,37 38,5 10,91 39,5 15,51 41 20,79 44,5 34,51 024 24 37,5 7,52 39,5 11,14 40,5 15,81 42 21,18 45,5 35,12 025 25 38,5 7,68 40,5 11,35 41,5 16,11 43 21,58 46,5 35,73 026 26 39,5 7,84 41,5 11,57 42,5 16,41 44 21,96 47,5 36,35 027 27 40,5
32、7,98 42,5 11,79 43,5 16,71 45 22,36 48,5 36,96 028 28 41,5 9,13 43,5 12,01 44,5 17,01 46 22,75 49,5 37,57 029 29 42,5 8,29 44,5 12,23 45,5 17,31 47 23,15 50,5 38,18 030 30 43,5 8,45 45,5 12,45 46,5 17,61 48 23,59 51,5 38,80 032 32 46,5 8,87 48,5 13,06 49,5 18,45 51 24,62 54,5 40,54 034 34 48,5 9,17
33、50,5 13,51 51,5 19,05 53 25,43 56,5 41,76 036 36 50,5 9,48 52,5 13,94 53,5 19,65 55 26,22 58,5 42,99 038 38 52,5 9,79 54,5 14,39 55,5 20,25 57 27,00 60,5 44,21 040 40 54,5 10,09 56,5 14,83 57,5 20,85 59 27,79 62,5 45,44 042 42 56,5 10,40 58,5 15,27 59,5 21,45 61 28,57 64,5 46,66 044 44 58,5 10,70 60
34、,5 15,71 61,5 22,05 63 29,35 66,5 47,89 046 46 60,5 11,02 62,5 16,16 63,5 22,65 65 30,13 68,5 49,11 continued EN 3301:20077 Table 2 Lengths and masses (concluded) Nominal diameter code 050 060 070 080 100 Length code L 0,2 N Mass a N Mass aN Mass aN Mass aN Mass a048 48 62,5 11,32 64,5 16,59 65,5 23
35、,25 67 30,92 70,5 50,34 050 50 64,5 11,62 66,5 17,04 67,5 23,85 69 31,70 72,5 51,56 052 52 68,5 17,47 69,5 24,45 71 32,49 74,5 52,79 054 54 70,5 17,91 71,5 25,05 73 33,27 76,5 54,01 056 56 72,5 18,36 73,5 25,65 75 34,06 78,5 55,24 058 58 74,5 18,79 75,5 26,25 77 34,84 80,5 56,46 060 60 76,5 19,24 77
36、,5 26,85 79 35,63 82,5 57,68 062 62 79,5 27,45 81 36,41 84,5 58,81 064 64 81,5 28,05 83 37,19 86,5 59,23 066 66 83,5 28,665 85 37,97 88,5 61,35 068 68 85,5 29,25 87 38,76 90,5 62,58 070 70 87,5 29,85 89 39,54 92,5 63,80 072 72 91 40,32 94,5 65,03 074 74 93 41,11 96,5 66,25 076 76 95 41,89 98,5 67,48
37、 078 78 97 42,68 100,5 68,70 080 80 99 43,45 102,5 69,93 082 82 104,5 70,15 084 84 106,5 72,38 086 86 108,5 73,60 088 88 110,5 74,83 090 90 112,5 76,05 092 92 114,5 77,28 094 94 116,5 78,49 096 96 118,5 79,72 098 98 120,5 80,94 100 100 122,5 82,17 aMasses (7,8 kg/dm3): kg/1 000 pieces. EN 3301:20078
38、 4 Designation EXAMPLE Each T-head boIt, close tolerance, shall only be designated as in the following example: Description block BOLT Identity block EN3301-080-050 Number of this standard Nominal diameter code (see Table 1) Length code (see Table 2) NOTE If necessary, the code I9005 shall be placed
39、 between the description block and the identity block. 5 Marking Each T-head boIt, close tolerance, shall be marked in accordance with EN 2424, class A. 6 Technical specification T-head bolts, close tolerance shall conform to the requirements of EN 3302. EN 3301:2007blankBS EN 3301:2007BSI389 Chiswi
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