1、STD-BSI BS EN 3037-ENGL 1777 1b2ibbS 058bb21 i25 W BRITISH STANDARD AEROSPACE SERIES Screws, pan head, offset cruciform recess, close tolerance normal shank, short thread, in titanium alloy, anodized, Mosz lubricated Classification: 1100 MPa (at ambient temperature) / 315 “C The European standard EN
2、 3037 : 1996 has the status of a British standard ICs 49.030.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGm LAW BS EN 3037 : 1997 STDeSSI BS EN-3037-ENGL 1797 = lb2Vbb7 058bb22 3bl = AmdNo. BS EN 3037 : 1997 Date Text affected Committees responsible for this British Standard Th
3、e preparation of this British standard was enmskd to Technid Committee ACW12, Aerospace fasteners and fastening systems, upon which the following bodies were represented: Asmialion of Eiectsonics, Telecommunications and Busines Equipment Industries British Industriai Fasteners Fededon Minishy of Def
4、ence society of British Aerospace Companies Ltd. This British Standard, having been prepared under the direction of the Enguieering Sector Board, was published under the authority of the Standards Board and comes into efect on 16 February 1997 O BSI 1997 Amendments issued since publication The foiow
5、ing BSI references reiate to the work on this Committee reference ACW12 for comment 88176363 DC ISBN O 580 27022 X I * * cn STD.-BSI BS EN 3037-ENGL 1997 Lb24bbS 05bb23 2T8 BS EN 3037 : 1997 Contents page Commiees responsible Inside hnt cover Nationai foreword ii Foreword 2 Spedncation 1 scope 3 2 N
6、ormativereferences 3 3 - * cs 4 Desiion 6 Markhg 6 lchnicaspecication 7 oversizedbolts O BSI 1997 i BS EN 3037 : 1997 National foreword This British standard has been prepared by Technical Committee ACWl2 and is the Engiish language version of EN 3037 : 1996 Aerospace series - Straus, pan head, offs
7、e cn.u$fm recess, close tdemnce normal shank, short thead, in titunium alloy, amdizecl, Mos2 lubricated - C7,a.ssgicat.iOn: 11 O0 MPa (at ambient tempemcUre) /315 OC, published by the European Committee for standardization (CEN). EN 3037 : 1996 was produced as a result of intemational discussions in
8、 which the United Kingdom took an active parL Cross-references Publication referred to EN 2000: 1991 EN 2424: 1995 EN 3042: 1991 Isom: 1992 Is0 5865-2 : 1988 Is0 7913 : 1994 Is0 7994 : 1985 Corresponding British Standard BS EN 2000 : 1992 Qzuity assumme - EN aerospace pmdwts - Appmval of ule - appli
9、cation : EN 2491 : 5 pm to 10 p. STD-BS BS EN 3037-ENGL 1777 Lb2LibbS 05bb29 7Lb Page 5 EN 3037 : 1996 Values in micrometres apply prior to surface treatment. Break sharp edges 0,l to 0,4. E - c - L I, I ?hole Marking I/ i Drive: see table 3. LL * 0.3 I 1) Shape optional Figure 1 Page 6 EN 3037 : 19
10、96 Mnnt.r CQda 030 O40 050 060 070 O80 1 O0 120 mod ” Dl 02 03 04 05 E O f7 -0.3 min. nom. Toi. H13 nom. Toi. 1.8 - MJ30,5 - 4h6h 3 6 4.7 2.3 O O - 2.4 -0.2 1,1 - 0.5 MJ40,7 - 4h6h 4 8 6.7 3 MJ50,8 - 4h6h 5 10 8.7 3,4 MJ6xl -4h6h 6 12 10.7 4.2 MJ7xl - 4h6h 7 14 12.7 5,2 MJ8xl -4h6h 8 16 14.7 6,2 f 0
11、.5 - 0,3 MJ101,25-4h6h 10 20 18.7 7,s MJl21.25-4h6h 12 24 22,7 9,8 7.2 070 080 1 O0 120 004to070 dto 70 11 0.7 2.8 0.7 5.31 0,17 004to O80 4to 80 11.5 7.5 3.2 0.8 7,23 0,22 005t0100 510100 14.5 9 4 1 14,24 0.35 4.8 1,2 25,17 0,50 006to120 610120 16 10 O9 - 0,3 STD-BSI BS EN 3037-ENGL I997 = Lb211bb7
12、 058bb3L 3711 Description block Page 7 EN 3037 : 1996 Identity block EN3037005001 OA 4 Designation EXAMPLE : Hole code (see table 2) Diameter code (see table 1) Length code (see table 1) NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. Drive c
13、ode (see table 3) Table 2 with without I Hole I Code I D - (hyphen) * * M Drive IS0 7994 Code R Table 3 A I IS0 7994 unribbed 5 Marking See table 4 and figure 1, indented. Table 4 I EN 2424 I Style Diameter code I I 030and040 I N I I 050to 120 I c-1 STD-BSI BS EN 3037-ENGL 1777 1h24bb7 058bb32 200 W
14、 Page 8 EN 3037 : 1996 6 Technical specification IS0 91 52, with the following modifications : 6.1 Approval of manufacturers EN 2000 6.2 Qualification of screws EN 3042 6.3 Requirements deleted - Double shear strength ; - Recess removal torque resistance in acceptance. 7 Oversized bolts EN 4016 STD-
15、BSI BS EN 3037-ENGL L77f Lb24bb7 058bb33 Lq7 BS EN 3037 : 1997 List of references see national foreword. O BSI 1997 STD-BSI BS EN 3037-ENGL 1797 1b24bb7 05bb34 O3 BS EN 3037 : 1997 BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. I
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