公制鋼絲螺套技術要求din8140-1德國工業(yè)標準英文版

1、ICS 21.060.99Gewindeeinsätze aus Draht für Metrisches ISO-Gewinde – Teil 1: Maße, Technische LieferbedingungenIn keeping with current practice in standards published by the International Organization for S

2、tandardization (ISO), a comma has been used throughout as the decimal marker.ForewordThis standard has been prepared by Technical Committee Gewindeeinsätze of the Normenausschuss Mechanische Verbindungselemente (Fas

3、teners Standards Committee).AmendmentsThis standard differs from the October 1988 edition in that it has been editorially revised and the specifica- tions for d1 and the number of turns for sizes M14 and M16 have been ha

4、rmonized with international standards.Previous editionDIN 8140-1: 1988-10.All dimensions are in mm.1 ScopeThis standard specifies dimensions and technical delivery conditions for wire thread inserts (‘thread inserts’, fo

5、r short) which serve to produce high-strength, wear-resistant internal screw threads in metallic and non- metallic components. They are also used to repair damaged threads and to replace threads worn in service. Thread i

6、nserts reduce the susceptibility of bolted connections to cold welding. They are resistant to the effects of high and low temperatures and to corrosion and ensure a constant coefficient of friction.2 Normative references

7、This standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the titles of the publications are listed bel

8、ow. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the

9、 publication referred to applies.Ref. No. DIN 8140-1 : 1999-07 English price group 09 Sales No. 010906.00DEUTSCHE NORM July 19998140-1{Continued on pages 2 to 13.© No part of this translation may be reproduced witho

10、ut the prior permission of DIN Deutsches Institut für Normung e.V., Berlin. Beuth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen).Translation by DIN-Sprachendienst.In c

11、ase of doubt, the German-language original should be consulted as the authoritative text.Wire thread inserts for ISO metric screw threadsPart 1: Dimensions and technical delivery conditionsSupersedes October 1988 edition

12、.Page 3 DIN 8140-1 : 1999-07Table 1: Nominal length (guideline values)Nominal length, l1, for a bolt property class/yield strength, in N/mm2,of bolt material, ofUp to 150Over 150 up to 200Over 200 up to 250Over 250 up to

13、 300Over 300 up to 400Over 400Tensile strength of workpiece material, Rm, in N/mm2Figure 3: Thread insert1 Thread to DIN 8140-2Figure 4: Tapped hole Figure 5: AssemblyKey to symbols:d thread size (nominal diameter)d1 maj

14、or diameter of thread insert before assemblyd2 minor diameter of tapped hole (guideline value)l1 nominal length of thread insert (design value)l2 length of thread insert when fitted (l1 – P)l3 minimum depth of core holel