1、BRITISH STANDARD AEROSPACE SERIES BS EN 3543:1997 Screws, 100 countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated Classification: 1100 MPa (at ambient temperature)/425 C The European Standard EN 3543:1997 has
2、 the status of a British Standard ICS 49.040.20BSEN3543:1997 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15 June 1997 BSI 09-1999 The following BSI references relate to
3、the work on this standard: Committee reference ACE/12 Draft for comment 88/74827 DC ISBN 0 580 26687 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee ACE/12, Aerospace fasteners and fastening systems, upon which the foll
4、owing bodies were represented: British Industrial Fasteners Federation Ministry of Defence Society of British Aerospace Companies Amendments issued since publication Amd. No. Date CommentsBSEN3543:1997 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Forewor
5、d 2 1 Scope 3 2 Normative references 3 3 Required characteristics 3 4 Designation 6 5 Marking 6 6 Technical specification 6 7 Oversized bolts 6 Figure 1 4 Table 1 5 Table 2 6 Table 3 6 Table 4 6 List of references Inside back coverBSEN3543:1997 ii BSI 09-1999 National foreword This British Standard
6、has been prepared by Technical Committee ACE/12 and is the English language version of EN3543:1997 Aerospace series Screws, countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated Classification: 1100 MPa (at amb
7、ient temperature)/425 C, published by the European Committee for Standardization (CEN). EN 3543:1997 was produced as a result of international discussions in which the UnitedKingdom took an active part. Cross-references The British Standards corresponding to the European Standards referred to in the
8、 text are identical in number and title with those given in clause2, with the exception of EN2516, EN4016 and TR3775 for which no corresponding BritishStandards exist. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsibl
9、e for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Publication referred to Corresponding British Standard ISO 3353:1992 BS 2A 231:1993 Rolled threads for bolts. Lead and runout requirements BS 6293 Aerospace. MJ threads ISO
10、5855-2:1988 Part 2:1994 Limit dimensions for bolts and nuts ISO 7913:1994 BS 2A 296:1995 Bolts and screws metric. Tolerances of form and position ISO 7994:1985 BS A 297:1987 Specification for internal drive, offset cruciform recess (Torq-Set ) for rotary fastening devices. Metric series ISO 8168:198
11、8 BS A 301:1989 Procurement of corrosion and heat resisting steel bolts with strength classification1100MPa and MJ threads Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to6, an inside back cover and a back cover. This standard h
12、as been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN3543 January 1997 ICS49.040.20 Descriptors: Aircraft industry, screw, countersunk head screw, cro
13、ss recessed screw, heat resistant steel, corrosion resistant steel, specification, dimension, dimensional tolerance, surface treatment, designation, marking English version Aerospace series Screws, 100 countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in h
14、eat and corrosionresisting steel, passivated Classification: 1100MPa (at ambient temperature)/425 C Srie arospatiale Vis tte fraise 100 normale, empreinte cruciforme dporte, tige normale tolrance serre, filetage court, en acier rsistant chaud et la corrosion, passives Classification:1100MPa ( tempra
15、ture ambiante)/425 C Luft- und Raumfahrt 100 Senk-Paschrauben mit Flgelkreuzschiltz, kurzes Gewinde, aus korrosionsbestndigem und hochwarmfestem Stahl, passiviert Klasse: 1 100 MPa (bei Raumtemperatur)/425 C This European Standard was approved by CEN on1996-12-11. CEN members are bound to comply wit
16、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 Central Secretari
17、at or to any CEN member. The European Standards exist 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 Central Secretariat has the same status as the official v
18、ersions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normali
19、sation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN 3543:1997 EEN3543:1997 BSI 09-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). Aft
20、er inquiries 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 AECMA, prior to its presentation to CEN. This European Standard shall be given the status of
21、a national standard, either by publication of an identical text or by endorsement, at the latest by July1997, and conflicting national standards shall be withdrawn at the latest by July1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun
22、tries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom.EN3543:1997 BSI 09-1999 3 1 Scope This standard specifies the charact
23、eristics of screws,100 countersunk normal head, offset cruciform recess, close tolerance normal shank, short thread, in heat and corrosion resisting steel, passivated. Classification: 1100 MPa 1) /425 C 2) 2 Normative references This European Standard incorporates by dated or undated reference provi
24、sions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it b
25、y amendment or revision. For undated references the latest edition of the publication referred to applies. ISO 3353, Aerospace Rolled threads for bolts Lead and runout requirements. ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO 5856, Aerospace Screws, 100 normal c
26、ountersunk head, internal offset cruciform ribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to1100MPa Dimensions. ISO 7913, Aerospace Bolts and screws, metric Tolerances of form and position. ISO 7994, Aerospace
27、 Internal drive, offset cruciform recess (Torq-Set ) for rotary fastening devices Metric series. ISO 8168, Aerospace Corrosion- and heat-resisting steel bolts with strength classification 1100 MPa and MJ threads Procurement specification. EN 2000, Aerospace series Quality assurance EN aerospace prod
28、ucts Approval of the quality system of manufacturers. EN 2424, Aerospace series Marking of aerospace products. EN 2516, Aerospace series Passivation of corrosion resistant steels and decontamination of nickel base alloys 3) . EN 3042, Aerospace series Quality assurance EN aerospace products Qualific
29、ation procedure. EN 4016, Aerospace series Oversized bolts 3) . TR 3775, Aerospace series Bolts and pins National materials 4) . 3 Required characteristics 3.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are: in conformity with ISO5856, expressed in millimetre
30、s and apply after surface treatment. 3.2 Tolerances of form and position ISO 7913 3.3 Materials TR 3775 (heat and corrosion resisting steel, strength class1100MPa) 3.4 Surface treatment EN 2516 1) Minimum tensile strength of the material at ambient temperature 2) Maximum temperature that the screw c
31、an withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by the material. 3) Published as AECMA Standard at the date of publication of this standard 4) Published as AECMA Technical Report at the date of publica
32、tion of this standardEN 3543:1997 4 BSI 09-1999 Figure 1 EN 3543:1997 BSI 09-1999 5 Table 1 Diameter code Thread a D 1 D 2 D 3 D 4 D 5 D 6 E F G H L 1 0,2 bc L 2 L 3 R Mass d f7 max. min. nom. Tol. H13 min. Code nom. nom. Tol. e f 030 MJ30,5-4h6h 3 6 5,4 4,5 2,3 0,06 0,63 0,3 1,27 003 to 030 3 to 30
33、 6 0,4 0,54 0,055 040 MJ40,7-4h6h 4 8 7,2 5,78 3 1,1 0,08 0,93 0,4 1,69 003 to 040 3 to 40 7,5 5 1,13 0,099 050 MJ50,8-4h6h 5 10 9 7,71 3,4 1,5 0,96 0,5 2,12 004 to 050 4 to 50 9 6 0,5 2,21 0,153 060 MJ61-4h6h 6 12 10,8 9 4,2 0,5 1,26 2,54 005 to 060 5 to 60 10 7 0,7 3,72 0,222 070 MJ71-4h6h 7 14 12
34、,8 10,28 5,2 1,9 1,57 2,96 006 to 070 6 to 70 11 5,83 0,302 080 MJ81-4h6h 8 16 14,8 12,21 6,2 1,6 3,39 006 to 080 6 to 80 11,5 7,5 7,71 0,395 100 MJ101,25-4h6h 10 20 18,8 15,43 7,9 2,4 0,1 1,93 0,6 4,23 008 to 100 8 to 100 14,5 9 0,8 16,2 0,616 120 MJ121,25-4h6h 12 24 22,8 18 9,8 2,53 5,08 010 to 12
35、0 10 to 120 16 10 0,9 27,5 0,887 140 MJ141,5-4h6h 14 28 26,8 20,57 11,5 3 3,14 5,93 010 to 140 10 to 140 19 12 1,1 40,8 1,208 160 MJ161,5-4h6h 16 32 30,8 24,43 13,5 3,2 6,77 010 to 160 10 to 160 20,5 12,5 59,0 1,578 180 MJ181,5-4h6h 18 36 34,8 25,71 15,5 3,8 4,35 7,62 011 to 180 11 to 180 22,5 14,5
36、1,3 83,1 1,997 200 LJ201,5-4h6h 20 40 38,8 28,92 17,5 4,68 8,47 012 to 200 12 to 200 24,5 15 113 2,466 a In accordance with ISO5855-2, except the thread major diameter “d max.” which shall be equal to D 1min.0,025. b Increments: 1 for L 1k 30 2 for 30 100 c If greater lengths are required, they shal
37、l be chosen using the above increments. The length code corresponds to the length L 1 , completed by one or two zeros to the left, where necessary, to obtain a three digit code. d Approximate values (kg/1000pieces), calculated on the basis of7,85kg/dm 3 , given for information purposes only. They ap
38、ply to screws without hole. e Value for first L 4 f Increase for each additional millimetre of L 4 . 00,08 00,5 00,2 00,3 EN3543:1997 6 BSI 09-1999 4 Designation EXAMPLE: NOTEIf necessary, the code I9005 shall be placed between the description block and the identity block. Table 2 Table 3 5 Marking
39、See Table 4 and Figure 1, indented. Table 4 6 Technical specification ISO 8168, except for clauses: Approval of manufacturers: see EN2000; Qualification of bolts: see EN3042. 7 Oversized bolts EN 4016 Hole Code with D without (hyphen) Drive Code ISO 7994 R ISO 7994 unribbed A Diameter code EN 2424 S
40、tyle 030 and 040 N 050 to 200 C + MJBSEN3543:1997 BSI 09-1999 List of references See national foreword.BS EN 3543:1997 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on s
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