1、 ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4161 Edition P3 June 2018 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Will supersede EN 416
2、1:2009 and EN 4161/AC:2010 Descriptors: ENGLISH VERSION Aerospace series Screws, pan head, offset cruciform recess, coarse tolerance normal shank, long thread, in alloy steel, cadmium plated Classification: 1 100 PMa (at ambient temperature)/235 C Luft- und Raumfahrt Flachkopfschrauben, mit Flgelkre
3、uzschlitz, langes Gewinde, aus legiertem Stahl, verkadmet Klasse: 1 100 MPa (bei Raumtemperatur)/235 C Srie arospatiale Vis tte cylindrique, empreinte cruciforme dporte, tige normale tolrance large, filetage long, en acier alli, cadmies Classification: 1 100 MPa ( temprature ambiante)/235 C This “Ae
4、rospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain
5、 following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreemen
6、t of ASD-STAN, the ASD-STAN prEN will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the stat
7、us of a national standard and by withdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and
8、 suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you
9、to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permiss
10、ion of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1stJune 2018 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain prEN 4161:2018 (E) 2 Contents Page 1 Scope 3 2 Normative
11、references 3 3 Terms and definitions . 4 4 Required characteristics 4 5 Designation 7 6 Marking . 7 7 Technical specification 7 Bibliography 8 prEN 4161:2018 (E) 3 1 Scope This European standard specifies the characteristics of screws, pan head, offset cruciform recess, normal shank, long thread, in
12、 alloy steel, cadmium plated. Classification: 1 100 MPa1)/235 C2). 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated r
13、eferences, the latest edition of the referenced document (including any amendments) applies. EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 2137, Aerospace series Steel FE-PL75 1100 MPa Rm 1250 MPa Bars De 100
14、 mm3)EN 2424, Aerospace series Marking of aerospace productsEN 2442, Aerospace series Steel FE-PL711 1100 MPa Rm 1300 MPa Bars and wires De 25 mm3)ISO 3353-1, Aerospace series Lead and runout threads Part 1: Rolled external threads ISO 5855-2, Aerospace series MJ threads Part 2: Limit dimensions for
15、 bolts and nuts ISO 7689, Aerospace series Alloy steel bolts with strength classification 1100 MPa and MJ threads Procurement specification ISO 7913, Aerospace series Bolts and screws, metric Tolerances of form and position ISO 14275, Aerospace series Drives, internal, offset cruciform, ribbed Metri
16、c series ISO 14276, Aerospace series Drives, internal, offset cruciform Metric series TR 3775, Aerospace series Bolts and pins Materials 1) Minimum tensile strength of the material at ambient temperature. 2) Maximum temperature that the screw can withstand without continuous change in its original c
17、haracteristics, after return to ambient temperature. The maximum temperature is determined by the surface treatment. 3) For new design, see EN 3514 prEN 4161:2018 (E) 4 3 Terms and definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use
18、 in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 4 Required characteristics 4.1 Configuration Dimensions Masses See Figure 1 and Table 1. Dimensions and tolerances are expressed
19、 in millimetres and apply after surface treatment. 4.2 Tolerances of form and position ISO 7913. 4.3 Materials EN 2137, EN 2442 or TR 3775 (alloy steel, classification 1 100 MPa). 4.4 Surface treatment EN 2133, 8 m to 14 m, on all surfaces which can be contacted by a 20 mm diameter ball. On all othe
20、r surfaces, a continuous deposit shall be present, but no value is specified. Black colour option: code B. prEN 4161:2018 (E) 5 Dimensions in millimetres Key 1 Thread 2 Marking a Conforms to ISO 3353-1 b Drive c Shape optional Figure 1 prEN 4161:2018 (E) 6 Table 1 Dia-meter code ThreadsaD1h12 D2 00,
21、3D3D4E L1b, c, dL2b, c, dL3L4 0,3d, eR S Massfmin. nom. Tol. nom. Tol. min. max. Length code nom. nom. Tol. max. min. g h 030 MJ3x0,5 4h6h 3 6 4,7 2,3 00,51,8 00,20,4 2 12 014 to 042 016 to 056 14 to 42 16 to 56 0,4 00,21,2 0,3 0,979 0,110 040 MJ4x0,7 4h6h 4 8 6,7 3 2,4 14 1,6 0,4 2,242 0,198 050 MJ
22、5x0,8 4h6h 5 10 8,7 3,4 0,5 3 00,30,5 4 16 020 to 070 20 to 70 0,5 2 0,5 4,528 0,306 060 MJ6x1 4h6h 6 12 10,7 4,2 3,6 0,7 18 022 to 084 024 to 098 026 to 112 22 to 84 24 to 98 26 to 112 0,7 2,4 0,6 7,457 0,444 070 MJ7x1 4h6h 7 14 12,7 5,2 4,2 20 2,8 0,7 12,095 0,604 080 MJ8x1 4h6h 8 16 14,7 6,2 4,8
23、22 3,2 0,8 16,923 0,790 100 MJ10x1,25 4h6h 10 20 18,7 7,9 6 0,8 6 26 032 to 140 32 to 140 0,8 4 1 33,023 1,232 120 MJ12x1,25 4h6h 12 24 22,7 9,8 7,2 0,9 30 036 to 168 36 to 168 0,9 00,34,8 1,2 57,123 1,774 aIn accordance with ISO 5855-2. bFirst length corresponding to first L4length. cCondition L1mi
24、n. and L2max. cannot be obtained simultaneously. dIncrements: 2 for L4100. e If greater lengths are required, they shall be chosen using the above increments. The length code corresponds to the length L4, completed by one or two zeros to the left, where necessary, to obtain a three digit code. f App
25、roximate values (kg/1 100 pieces), calculated on the basis of 7,85 kg/dm3, given for information purposes only. g Value for head and first L4. h Increase for each additional 2 mm of L4. prEN 4161:2018 (E) 7 5 Designation EXAMPLE NOTE If necessary, the code I9005 may be placed between the description
26、 block and the identity block. Table 2 Drive Code ISO 14275 None ISO 14276 A 6 Marking See Table 3 and Figure 1. Table 3 Diameter code EN 2424 Style 030 and 040 N 050 to 120 B 7 Technical specification ISO 7689, except for clauses: a) Approval of manufacturers The manufacturers operations shall be a
27、n approved production organization for aerospace products and shall demonstrate that it has implemented and is able to maintain a quality system (e.g. according to EN 9100 or another in aerospace accepted and established quality management system). b) Qualification of screws The qualification proced
28、ure for aerospace standard products (e.g. according to EN 9133 or an equivalent aerospace accepted and established qualification procedure) shall be used and documented according to the specified tests if not otherwise agreed between customer and supplier. prEN 4161:2018 (E) 8 Bibliography 1 EN 9100, Quality Management Systems Requirements for Aviation, Space and Defence Organizations 2 EN 9133, Aerospace series Quality Management Systems Qualification Procedure for Aerospace Standard Products
