1、AECMA PREN3035 87 U 2022322 0004727 T , -A- - _ _ A. E.C. M.A. STANDARD prE N 3035 NORME A.E.C.M.A. Issue P 1 A.E.C.M.A. NORM February 1987 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATERIEL AROSPATIAL 88, boulevard Malesherbes, 75008 PARIS -TEL. 45-63-82-85 UDC : Key words : ENGLISH VERSI
2、ON Aerospace series Bolts, 1 O0 O countersunk head, Torq-aet recess, close tolerance shank, short hread, in steel cadmium plated Classification : 1 1 O0 MPa/235 OC Srie arospatiale Luft- und Raumfahrt Vis tte fraise, 1 O0 O, empreinte Torq-Set , tolrances serres, filetage court en acier cadmi Classi
3、fication : 11 O0 MPa/235 OC 100 0 Senkschrauben mit Flgelkreuzschlitz , enge Toleranzen, kurzes Gewinde, aus Stahl, verkadmet Klasse : 11 O0 MPa/235 OC This standard is initially published on green paper for the needs of AECMA-Members (Association Europenne des Constructeurs de Matriel Arospatial).
4、It has been technically approved by the experts of the concerned AECMA Commission following comment by the manufacturers of the Member countries. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will
5、be published in its final version on yellow paper as an AECMA Standard. Nota - Extra copies can be supplied by B.N.A.E. - 8, rue Moreau-Vauthier -92100 BOULOGNE-BILLANCOURT Edition approved for publication Comments should be sent within six months C3 Chairman 16 February 1987 after the date of publi
6、cation decision A.E.C.M.A. 88, Bd. Malesherbes 75008 PARIS - FRANCE Mr ARENA 0 aecma 1987 - - - _ - AECMA PREN3035 87 W 1032311 0004738 1 Previous page is blank O O O O Issue P 1 prEN3035 Page 3 1 Scope This standard specifies the characteristics for screws with 1 OOo countersunk head, Torq-Set rece
7、ss, close tolerance shank and short thread, in cadmium plated steel of tensile strength classification 1100 MPa. 2 Field of application These bolts are intended for use in aircraft assemblies subjected principally to shear load. The cadmium plating restricts the application to temperatures not excee
8、ding 235 OC. 3 References isa 3353, IS0 585511, IS0 585512, IS0 5856, IS0 7689, IS0 7913, IS0 7994, EN2000, EN2133, EN2137, EN2424, EN2442, EN3051 , Aerospace construction - Rolled threads - Runout and lead th reads Aerospace construction - MJ threads - Part 1 : Basic profile Aerospace construction
9、- MJ threads - Part 2 : Dimensions for bolts and nuts Aerospace - Bolts with looo countersunk normal head and short or medium length threads in steel or titanium with strength classification less than or equal to 1100 MPa - Coated or uncoated - Dimensions 1) Aerospace - Alloy steel protruding and fl
10、ush head bolts with strength - Classification 1100 MPa and MJ threads - Procure- ment specification 1) Aerospace - Fasteners - Tolerances of form and position for bolts and screws Aerospace - internal drive, Torq-Set 8 offset cruciform recess for rotary fastening devices - Metric series Aerospace se
11、ries - Quality assurance requirements for the manufacture and procurement of EN aerospace standard products. Cadmium plating of steels with maximum specified tensile strength equal to or less than 1450 MPa and copper and copper alloys - Aerospace series Steel FE-FL75 - llOQ MPa Rm 1250 MPa - Bars De
12、 100 mm - Aerospace series Identification marking of standard fasteners - Aerospace series Steel FE-PL711 - 1100 MPa Rm 1300 MPa - Bars and wires De 25 mm - Aerospace serss Aerospace series - Substitute materials for bolts - - - - 4 Required caracteristics 4.1 Configuration - Dimensions - Tolerances
13、 The configuration shall be in accordance with the figure ; the dimensions and tolerances 2) 3) shall conform with the values shown in the figure and in tables 1 and 2, after cadmium plating. 4.2 Surface roughness See figure. The values apply before cadmium plating. 4.3 Materials 4) Steel : EN2137 o
14、r EN2442. 4.4 Surface treatment Cadmium plating EN2133, 6 to 10 pm on all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces a continuous deposit shall be present, but no value is specified. 1) In preparation 2) In conformity with IS0 5856 3) In conformity with IS0 7913
15、for form and positional tolerances, except those marked * see table 1. 4) Substitute materials are given in EN3051. - AECMA PREN3035 7 m LOL23LL OOOL17L9 3 U Issue P 1 prEN3035 Page 4 3f/ O& og-) Rolled Break sharp edges 0,l to 0,4 mm : 1 ,-Conform to ISO 3363 1 holefi W optional e I I Figure - Conf
16、iguration - EXTERNAL DIAMETER max. : actual plain shank min. : defined b 6h tolerance. (see +JI. 1) diameter - 0,25 mm. Recess conform to Is0 7994 Blended convex for permissible within envelope 7 .% Detail ZZ 1) Runout shall be measured at 1D. If (L-(H+R) - D measure at 0,5 (L-(H+R). 2) N = L nom. +
17、 M vi c o in C *- .- E n I issue P 1 prEN335 Page 5 O O 0, I w hl O O O m O O r! nnn rlmm i Issue P 1 AECMA PREN3035 87 m LOL23LL 0004722 L m prEN3035 Page 6 Table 2 - Lengths and masses Dimensions in millimetres I Diameter code 030 040 050 060 070 080 100 120 140 160 180 200 Mass 1) (7,85 kg/dm3) -
18、 kg/l O00 pieces I I I I I I l I I I I I 1 I I O a AECMA PREN3035 87 m 101231L 0004722 - 3 W -_- -_. Issue P 1 prEN3035 Page 7 Table 2 - Lengths and masses (continued) Dimensions in millimetres Diameter code 030 040 050 060 070 08Q 100 120 140 160 180 200 Length 2) I Lf2),2 1 code Mass 1) (7,85 kg/d
19、rnJ) - kg/l O00 pieces I I I I I I I I I I I I L 1) Values apply to bolts without hole. 2) The preferred length range ties within the bold lines. If greater lengths are necessary they shall be chosen in steps of 2 mrn for lengths L less than 100 mm and in multiples of 4 above. The length code corres
20、ponds to the length L in millimetres completed by a zero to the left, where necessary, to obtain a 3 digit code. 1 c : AECMA PREN3035 87 1012311 0004723 5 Split pin hole No locking facility Issue P 1 prEN3035 Page 8 D - 5 Designation Each bolt shall only be designated as in the following example : D
21、escription block BOLT, CSK HEAD I den ti ty block E N 31 3 51 01 O 01 O Number of EN Standard 1 D : Locking code (see table 3) 080 : Diameter code (see table 1) 060 : Length code (see table 2) Table 3 - Locking code I Option I Locking code Note : If necessary the originator code S9005 may be introdu
22、ced between the description block and the identity block. 6 Marking Each bolt shall be marked in the position shown in the figure in accordance with the styles shown in table 4 as defined by EN2424. Table 4 - Marking styles I Marking style I I Diameter code I D I I 030 and 040 I B I I 050 to 120 I 140 to 200 I A I 7 Technical specification Conforming to IS0 7689, except for quality assurance requirements - See EN2000.
