1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ICS 21.060.10 ISBN 0-626-16208-4 SANS 1700-12-7:1996Edition 1 and nat. amdt 1ISO 7434:1983Edition 1Any reference to SABS 1700-12-7 is deemedto be a refer
4、ence to this standard(Government Notice No. 1373 of 8 November 2002) SOUTH AFRICAN NATIONAL STANDARD Fasteners Part 12: Set screws Section 7: Slotted set screws with cone point This national standard is the identical implementation of ISO 7434:1983 and is adopted with the permission of the Internati
5、onal Organization for Standardization. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 1700-12-7:1996 Edition 1 and nat. amdt 1 ISO 7434:1983 Ed
6、ition 1 Table of changes Change No. Date Scope Nat. amdt 1 2005 Amended to change the designation of SABS standards to SANS standards with no technical changes. Abstract Specifies the characteristics of slotted set screws with cone point and thread sizes from M 1,2 to M 12 inclusive and product grad
7、e A. Keywords fasteners, screws (bolts), set screws, specifications. National foreword This South African standard was approved by National Committee StanSA TC 5120.01, Screw threads and fasteners, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agr
8、eement. This edition is technically identical to SABS 1700-12-7:1996. International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWdEYHAPOHAfl OPrAHbl3AUMfi fl0 CTAHAfTbl3AlJMMRGANISATION INTERNATIONALE DE NORMALISATION Slotted set screws with cone Point Ws sans tete, fendues, 2 bout pohtea
9、u First edition - 1983-09-01 iz - U DC 621.882.219.4.092.5 Ref. No. ISO 7434-1983 (E) Descriptors : fasteners, screws, slotted headless screws, dimensions, specifications, designation. Price based on 3 pages Foreword ISO (the International Organization for Standardization) is a worldwide federation
10、of national Standards bodies (ISO member bedies). The work of developing International Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been authorized has the right to be represented on that committee. Internati
11、onal organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. Internatio
12、nal Standard ISO 7484 was developed by Technical Committee lSO/TC 2, Fasteners, and was circulated to the member bodies in December 1981. lt has been approved by the member bodies of the following countries: Austria Hungary Belgium India Brazil Ireland China Japan Czechoslovakia Korea, Dem. P. Rep.
13、of Denmark Korea, Rep. of Egypt, Arab Rep. of Mexico Finland Netherlands France New Zealand Germany, F. R. Norway Poland Romania South Africa, Rep. of Spain Sweden Switzerland United Kingdom USSR No member body expressed disapproval of the document. 0 International Organkation for Standardkation, 19
14、83 Printed in Switzerland INTERNATIONAL STANDARD ISO 74344983 (E) Slotted set screws with cone Point 1 Scope and field of application This International Standard specifies the characteristics of slotted set screws with cone Point and thread sizes from M 1,2 to M 12 inclusive and product grade A. If
15、other specifications are required, it is recommended that they should be selected from existing International Standards, for example ISO 261, ISO 888, ISO 898, ISO 965, ISO 3506, ISO 4759/1. 2 References ISO 225, Fasteners - Bolts, screws, studs and nuts - Symbols and designations of dimensions. ISO
16、 261, ISO generalpurpose metric screw threads - General plan. ISO 888, Bolts, screws and studs - Nominal lengths, and thread lengths for general purpose bolts. I S 0 898, Mechanical properties of fasteners. ISO 965, ISO generalpurpose metric screw threads - Tolerantes. ISO 3269, Fasteners - Acceptan
17、ce inspection. 1) I S 0 3506, Corrosion-resis tan t s tainless s teel fas teners - Specifica tions. ISO 4042, Threaded components - Electroplated coatings components.1) ISO 4753, Fasteners - Ends of Parts with external metric ISO thread. ISO 475911, Tolerantes for fasteners - Part 1: Bolts, screws a
18、nd nuts with thread diameters 1,6 and 150 mm and product grades A, B and C. 1) At present at the Stage of draft. ISO 74344983 (E) 3 Dimensions 900r1200* Incomplete thread 2 P / * The 120 angle is mandatory for short length screws above the dotted stepped line. * The 90 angle applies only to the Port
19、ion of the Point below the root diameter of the thread with nominal lengths Z below the dotted stepped line. For short length screws above the dotted stepped line a 120 angle is mandatory. Dimensions in millimetres Thread size d 1 M1,2 1 M1,6 1 M2 1 M2,5 1 M3 l(M3,5)1 M4 1 M5 1 M6 1 M8 1 MIO 1 Ml2 P
20、2) 1 0,25 1 0,35 1 0,4 I 0,45 I 0,5 1 0,6 I 017 1 W3 1 1 1 1,25 1 1,5 I L75 df z I Minor thread diameter J 1 - - - - I - - - - - - dt31 min. - - - max. 0,12 0,16 0,2 0,25 0,3 0,35 0,4 0,5 115 2 2,5 3 nom. I 02 1 0,25 1 0,25 1 0,4 1 0,4 1 0,5 1 06 1 0,8 1 1 1 1,2 1 16 1 2 n min. 1 0,26 1 0,31 1 0,31
21、1 0,46 / 0,46 1 0,56 1 0,66 ( 0,86 1 1,06 1 1,26 1 1,66 1 2,06 max. 1 0,4 10,4510,4510,6 IO,6 IO,7 IO,8 11 IJ,2 1 1,51 1 1,91 1 2,31 min. 03 0,56 0,64 0,72 0,8 0,96 IJ2 1,28 1,6 2 2,4 23 t max. 0,52 0,74 0,84 0,95 1,05 1,21 1,42 1,63 2 2,5 3 3,6 nom. min. max. 2 1,8 2,2 - 2,5 1 2,3 1 2,7 r- -71 I -
22、3 2,8 3,2 1 I 4 I 3,7 I 43 I I I - r-l- 1 - I 1 1 I. -NI)- .-m 5 I 4,7 I 5,3 1 I * m-m- 6 5,7 6,3 I . 83 - 8 7,7 7 I 10 1 9,7 I IO,3 1 I I I Range 1 l I I 7= e- I I 12 11,6 12,4 of .- 1 . (14) 13,6 14,4 commercial -.- 16 1 15,6 1 %4 1 I 1 I I I lengths I I I 20 1 W6 1 20,4 1 25 24,6 25,4 30 29,6 30,
23、4 35 I 34,5 l 35,5 I I I I l I I I 1 1) Sizes in brackets should be avoided if possible. 2) P= pitch of the thread. 3) Q M5 no flat part on the cone required; the Point may be slightly rounded. 4) Min. and max. values according to ISO 4759/1, but rounded to one decimal place. 2 ISO 7434-1983 (El 4 S
24、pecifications and reference International Standards f Material I Steel Stainless steel I Non-ferrous metal 1 Thread Tolerante International Standards 6g ISO 261, ISO 965 Mechanical properties Property class International Standards 14H, 22H Al - 50 1) ISO 898/5 ISO 3506 Tolerantes Product grade Inter
25、national Standard A ISO 4759/1 Plain Finish Requirements for electroplating are covered in ISO 4042. If different electroplating requirements are desired or if requirements are needed for other finishes, they should be negotiated between supplier and customer. 1 Acceptability 1 The acceptance proced
26、ure is covered in ISO 3269. 1 1) Will be covered in a future International Standard. 5 Designation Example for the designation of a slotted set screw with cone Point, thread size d = MS, nominal length I = 12 mm and property class 14H : Set screw ISO 7434 - M5 x 12 - 14H 3 Standards South AfricaThis s tandard may only be used and printed by approved subscription and freemailing clients of the SABS .
