ISO-8740-1997.pdf
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1、INTERNATIONAL STANDARD IS0 8740 Second edition 1997-i l-01 Grooved pins - Full-length parallel grooved, with chamfer Goupilles cannel a=1100net: p=iso; o=isocs; s=central Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO License
2、e=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:43:12 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 IS0 8740:1997(E) Grooved pins - Full-length parallel grooved, with chamfer 1 scope This international Standard specifies th
3、e characteristics of full-length parallel grooved pins made of steel or austenitic stainless steel with chamfer which have three equally spaced grooves impressed longitudinally on their exterior surface and a pilot to facilitate insertion, with nominal diameter, 4, from 1,5 mm to 25 mm inclu- sive.
4、The displaced material to each side of the grooves forming an expanded diameter dz which 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 fol
5、lowing standards contain provisions which, through reference in this text, constitute 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 en
6、couraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 3269:1988, Fasteners -Acceptance inspection. IS0 3506-I :1997, Corrosion-resistant stainless steel
7、fasteners - Part 1: Bolts, screws and studs. IS0 4042:-l , Fasteners - Electroplated coatings. IS0 8749.1986, Pins and grooved pins - Shear test. IS0 9717:1990, Phosphate conversion coatings for metals -Method of specifying requirements. 3 Dimensions See figure 1 and table 1. 1) Chamfer permissible
8、2) a = 15” to 30” 3) The grooving angle 70” applies only to grooved pins made from steel as shown in clause 5. The grooving angle may be modified depending on resilience of material. Figure 1 1) To be published. (Revision of IS0 4042:1989) Copyright International Organization for Standardization Pro
9、vided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:43:12 MDTNo reproduction or networking permitted without license from IHS -,-,- ISC) 8740: 1997(E) Table 1 - Dimensions Dimensions in millimetres 1) Applies only to grooved pins made from
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