1、DEUTSCHE NORM March 1998 Grooved pins with round head English version of DIN EN IS0 8746 (IS0 8746 : 1997) DIN EN IS0 8746 ICs 21.060.50 Descriptors: Fasteners, grooved pins. Supersedes DIN EN 28746, October 1992 edition. Halbrundkerbngel (IS0 8746 : 1997) European Standard EN IS0 8746 : 1997 has th
2、e status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been published in accordance with a decision taken by CEN/TC 185 to adopt, without alteration, International Standard IS0 8746 as a European Standard. The responsible German body involved in its pr
3、eparation was the Normenausschu Mechanische Verbindungselemente (Fasteners Standards Committee). The DIN 4000-9-1 tabular layout of article characteristics shall apply to the pins covered in this standard. DIN IS0 3269 and DIN EN IS0 4042*) are the standards corresponding to International Standards
4、IS0 3269 and IS0 4042, respectively, referred to in clause 2 of the EN. Amendments In comparison with DIN EN 28746, October 1992 edition, the standard has been editorially revised. Previous editions DIN 1476: 1943-04, 1956-09, 1978-1 1 DIN EN 28746: 1992-1 O. National Annex NA Standards referred to
5、(and not included in Normative references) DIN 4000-9 DIN EN IS0 4042 Tabular layout of article characteristics for bolts, pins, rivets, split pins and keys Fasteners - Electroplated coatings (ISO/DIS 4042 : 1996)*) *) At present at the stage of draft. EN comprises 6 pages. No pari of this standard
6、may be reproduced without the prior permission of Ref. No. DIN EN IS0 8746 : 1998-0 Y Deutsches Institut fr Normung e. V., Berlin. wth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 06 Sales No. 1106 08.98 EUROPEAN STANDARD NORME E
7、UROPENNE EUROPISCHE NORM EN IS0 8746 November 1997 ICs 21.060.50 Descriptors: Fasteners, grooved pins. Supersedes EN 28746 : 1992. English version Grooved pins with round head (IS0 8746 : 1997) Clous canneles tte ronde (IS0 8746 : 1997) Halbrundkerbngel (IS0 8746 : 1997) This European Standard was a
8、pproved by CEN on 1997-1 0-23. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
9、stand- ards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notifi
10、ed to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzer
11、land, and the United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1997. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national me
12、mbers. Ref. No. EN IS0 8746 : 1997 E Page 2 EN IS0 8746 : 1997 Foreword International Standard IS0 8746 : 1997 which was prepared by ISO/TC 2 Fasteners of the International Organization for Standardization, has been adopted by Technical Committee CEN/TC 185 Threaded and non-threaded mechanical faste
13、ners and acces- sories, the Secretariat of which is held by DIN, as a European Standard. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, and conflicting national standards withdrawn, by May 1998 at the latest. In
14、accordance with the CENKENELEC Internal Regulations, the national standards organizations of the follow- ing countries are bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands,
15、 Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. Grooved pins with round head, Endorsement notice The text of the International Standard IS0 8746 : 1997 was approved by CEN as a European Standard without any modification. Page 3 EN IS0 8746 : 1997 1 Scope This International Sta
16、ndard specifies the characteristics of round head grooved pins which have three equally spaced grooves impressed longitudinally on their exterior surface, with nominal diameter, d, from 1,4 mm to 20 mm inclusive. The displaced material to each side of the grooves forming an expanded diameter, d2, wh
17、ich is larger than the nominal diameter d, will cause a non-positive locking fit when these grooved pins are forced into a drilled hole equal to the nominal diameter d, (see clause 4). 2 Normative references The following standards contain provisions which, through reference in this text, constitute
18、 provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the s
19、tandards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 3269: 1988, Fasteners - Acceptance inspection. IS0 4042:-”, Fasteners - Electroplated coatings. IS0 9717:1990, Phosphate conversion coatings for metals - Method of specifying requireme
20、nts. 1) To be published. (Revision of IS0 4042:1989) Page 4 EN IS0 8746 : 1997 3 Dimensions See figure 1 and table 1. NOTE - Types A and B are left to the discretion of the supplier, or specifically ordered by the customer. I l J 1) a= 15“to30 2) The grooving angle 70“ applies only to grooved pins m
21、ade from steel as shown in clause 5. The grooving angle may be modified depending on resilience of material. Type A: Pin with chamfered end NOTE - For other dimensions, see type A. Type B: Pin with pilot end Figure 1 Page 5 EN IS0 8746 : 1997 10 12 10,OO 12.0 9,85 11,8 16,O 19,0 14.9 17,7 7.4 8,4 6,
22、5 7.5 8 93 1; * max. 16 2 16,O 20, 15,8 19, 25,O 32, 23.7 30, 10.9 13, 10.0 13, 13 16, 0,42 0,48 Table 1 - Dimensions Dimensions in millimetres 2.00 2,500 3,000 4,O 8,OC 1,95 2,425 2,925 3.9 4,9 5,9 7,8E 37 4,6 5,45 7.25 9,l 10,8 14,4 3,3 4.2 4,95 6,75 8.5 10.2 13,E 13 1,6 1,95 2,55 3,15 3.75 5.C 1.
23、1 1.4 1,65 2,25 2,85 3,45 4,E 1.9 2,4 2.8 3,8 4.6 5,7 7r5 0.6 0,75 0.9 1,2 1,5 1,8 2.4 Expanded diameter, d23 t0.05 - 10.35 +0,1 - - 12.35 1) The range of commercial lengths is between the stepped lines. 2) The expanded diameter d, applies only to pins made from cold-heading steel. For other materia
24、ls, for example stainless steel, a reduction amount shall be subtracted from the given values and should be agreed between customer and supplier. 3) For testing d2, a GOINO GO ring gauge should be used. 4 Application The diameter of the hole into which the grooved pin is to be inserted shall be equa
25、l to the nominal diameter, d, of the mating pin and to tolerance class HI 1. Page 6 EN IS0 8746 : 1997 Grooves 5 Requirements and reference International Standards See table 2. Form of groove at the discretion of the supplier. Table 2 - Requirements and reference International Standards Workmanship
26、Acceptability Cold-heading steel (St), hardness 125 HV30 to 245 HV30 Pins shall be free of irregularities or detrimental defects. The acceptance procedure is covered in IS0 3269. Material Other materials as agreed between customer and supplier. Plain, .e. pins to be supplied in natural finish, treat
27、ed with a protective lubricant, unless otherwise specified by agreement between customer and supplier. Surface finish Preferred coatings are black oxide, phosphate coating or zinc plating with chromate conversion coating (see IS0 9717 and IS0 4042). Other coatings as agreed between customer and supp
28、lier. All tolerances shall apply prior to the application of a plating or coating. 6 Designation EXAMPLE A round head grooved steel pin with nominal diameter d, = 6 mm and nominal length 1 = 30 mm is designated as follows: Grooved pin IS0 8746 - 6 x 30 - St If in special cases, one of the types, for example type A, specified in clause 3 is required this shall be given in the designation as follows: Grooved pin IS0 8746 - 6 x 30 - A - St
