BS EN ISO 7053:2019 pdf – Fasteners – Hexagon washer head tapping screws (ISO 7053:2019).
1 Scope This document specifies the characteristics of hexagon washer head tapping screws, made of steel and stainless steel, with thread sizes ST2,2 to ST8, and with product grade A. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1478, Tapping screws thread ISO 2702, Heat-treated steel tapping screws — Mechanical properties ISO 3269, Fasteners — Acceptance inspection ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 4: Tapping screws ISO 4042, Fasteners — Electroplated coating systems ISO 4759-1, Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C ISO 8992, Fasteners — General requirements for bolts, screws, studs and nuts ISO 10683, Fasteners — Non-electrolytically applied zinc flake coating systems 3? Terms? and? definitions No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at https://www.iso.org/obp — IEC Electropedia: available at http://www.electropedia.org/ 4 Dimensions Dimensions shall be in accordance with Figures 1 and 2 and Table 1. Symbols and descriptions of dimensions are defined in ISO 225.