This document specifies the mechanical and physical properties of heat treated tapping screws made of steel, with thread sizes ST2,2 to ST9,5 in accordance with ISO 1478, when tested at the ambient temperature range of 10 °C to 35 °C, and the related test methods. Tapping screws are designed to form mating threads in sheet metals, without their own threads being deformed. Tapping screws are not intended to be pretensioned by design, even though they can experience varying degrees of low-level tensile stress after installation.
EN ISO 2702:2022 history
2022EN ISO 2702:2022 Fasteners - Heat treated tapping screws - Mechanical and physical properties (ISO 2702:2022)
2011EN ISO 2702:2011 Heat-treated steel tapping screws - Mechanical properties (ISO 2702:2011)
1994EN ISO 2702:1994 Heat-Treated Steel Tapping Screws - Mechanical Properties (ISO 2702 : 1992)