1、 STD-BSI BS EN 287U-ENGL L77b Lb24bb7 0583280 bb8 BRITISH STANDARD AEROSPACE SERIES Bolts, normal bihexagonal head, close tolerance normal shank, short thread, in titanium alloy, anodized, Mos2 lubricated - Classification: 1100 MPa (at ambient temperature) / 315 “C The European Standard EN 2870 : 19
2、96 has the status of a British Standard ICs 49.040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGEPT LAW 8- D NORME EUR0PEEL”E EUROP - application : EN 2491 : 5 pm to 10 pm. STD.BSI BS EN 2870-ENGL 177b Lb2LIbb7 0583288 757 = Page 5 EN 2870 : 1996 L cn a O * 8 P .- b E. .- Y m r
3、n I 1 nu w L L 3 c1 o m 3 C w- E *i lu m tu L e! 3 QJ C O O .- *i er C .- STD-BSI BS EN 2870-ENGL L77b M Lb2qbb7 0583287 875 Page 6 EN 2870 : 1996 o n c W 0 s e 8 m u C - al O 5 2 N 2 B % C UJ ; U O C al P - o o c 4 m C W W O c UJ U C O 5 - s 2 L o al U o 5 e C W al - UJ U f E 2 o C al O s al m C .-
4、 m s 9 I 20 .- C O u* ui al O z O CI a 5 5 VI c O O . P - n c - o m % i - C O UJ W va O E n C O .- U m + ri C .- w- C W m .- m- E 2 -? m Y KJ t O UJ UJ w- .- m n s al C O U W c m a - * * m Description block - STD.BSI BS EN 2870-ENGL L99b LbZLibbS 0583290 507 Identity block EN2870H050040 Page 7 EN 28
5、70 : 1996 Hole code (see table 21 Diameter code (see table 1) 4 Designation EXAMPLE : 040 050 to 120 N C+MJ NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. Table 2 5 Marking See table 3 and figure 1, indented. Table 3 1 EN 2424 Stvle I Diamet
6、er code I 6 Technical specification IS0 91 52, with the following modifications : 6.1 Approval of manufacturers EN 2000 6.2 Qualification of bolts EN 3042 6.3 Requirement deleted Double shear strength 7 Oversized bolts EN 4016 STD-BSI BS EN 2870-ENGL L77b W Lb24bb9 0583293 4L(3 W BS EN 2870 : 1996 L
7、ist of references See national foreword. O BSI 19% STD-BSI BS EN 2870-ENGL L77b m LbZqbbS 0583272 38T m BS EN 2870 : 1996 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British standards. It presents the UK
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