ISO INTERNATIONAL STANDARD 2009 Fourth edition 2011-09-01 Slotted countersunk flat head screws Product grade A Vis a métaux a tete fraisée fendue Grade A Reference number ISO 2009:2011(E) @ ISO 2011 ISO2009:2011(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. iso collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 2009 was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 11, Fasteners with metricexternalthread. This fourth edition cancels and replaces the third edition (IsO 2009:1994), of which it constitutes a minor revision. @ ISO 2011 - All rights reserved ili ISO 2009:2011(E) INTERNATIONALSTANDARD Slotted countersunk flat head screws Product grade A Scope This International Standard specifies the characteristics of slotted countersunk flat head screws of product grade A and with threads from M1,6 to M10 inclusive. be selected from existing International Standards, for example ISO 261, IsO 888, ISO 898-1, isO 965-2 and ISO3506-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated document (including any amendments) applies. Iso 225, FastenersBolts, screws, studs and nuts - Symbols and descriptions of dimensions IsO 261, IsO general purpose metric screw threads - General plan Iso 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studswithspecifiedproperty classesCoarsethreadand finepitchthread Iso 965-2, IsoO general purpose metric screw threads - -Tolerances-Part 2:Limits of sizes for general purpose external and internal screw threads -Medium quality IsO 3269, Fasteners —Acceptance inspection IsO3506-1,Mechanical properties of corrosion-resistant stainless steelfasteners—Part 1:Bolts,screws and ISO 4042, FastenersElectroplated coatings Iso 4759-1, Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C Iso 6157-1, Fasteners — Surface discontinuities Part 1: Bolts, screws and studs for general requirements Iso 8839, Mechanical properties of fasteners - Bolts, screws, studs and nuts made of non-ferrous metals ISO 8992, Fasteners General requirements for bolts, screws, studs and nuts IsO10683,FastenersNon-electrolyticallyappliedzincflake coatings IsO 16048, Passivation of corrosion-resistant stainless-steel fasteners @ ISO 2011 - All rights reserved