ISO 2702 pdf download Heat-treated steel tapping screws — Mechanical properties 1 Scope This Intermnational Standard specifies the characteristics of heat-treated steel tapping screws，with tappingscrew thread from ST2,2 to ST9,5 inclusive according to lSO 1478，together with the corresponding testmethods. 2Normative references The following referenced documents are indispensable for the application of this document.For datedreferences,only the edition cited applies.For undated references,the...