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1、INTERNATIONAL STANDARD IS0 2009 Third edition 1994-04-01 Slotted countersunk flat head screws (common head style) - Product grade A Vis 9 mktaux d t b = I - (k + a). 3 -,-,- IS0 2009:1994(E) 4 Specifications and reference International Standards See table 2. Table 2 Material General requirements Thr
2、ead Mechanical properties Tolerances Finish International Standard Tolerance International Standards Property class international Standards Product grade International Standard Steel Stainless steel Non-ferrous metal IS0 8992 69 IS0 261, IS0 965-2 4.8, 5.8 A2-50, A2-70 . . a IS0 898-l IS0 3506 IS0 8
3、839 A IS0 4759-l Plain Requirements for electroplating are covered in IS0 4042. If different electroplating requirements are desired or if re- quirements are needed for other finishes, they shall be agreed between customer and supplier. Limits for surface discontinuities are covered in IS0 6157-l. A
4、cceptability Acceptance procedure is covered in IS0 3269. 5 Designation Example of designation: A slotted countersunk flat head screw with thread M5, nominal length 1= 20 mm and property class 4.8 is designated as follows: Countersunk flat head screw IS0 2009 - M5 x 20 - 4.8 4 IS0 2009:1994(E) 0 IS0 ICS 21.060.10 DsscriPtors: fasteners, screws, slotted head screws, flat head screws, countersunk head screws, specifications, dimensions, designation. Price based on 4 pages -,-,-