European Technical Approval ETA-07/0155

Page 3 of European Technical Approval ETA - 07/0155 issued 01 February 2013English translation prepared by CSTBIISPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL APPROVAL1 Definition of product and intended use1.1. Definition of productThe Snake anchor is a screw manufactured from carbon steel and subsequently heat treated. Itis an internally threaded self tapping anchor, diameter M8 and M10 installed by drilling a pilothole with a standard ANSI bit (supplied with the Snake anchor) and screwed into the predrilledhole with a hex driver setting tool fitted on a impact screw driver. The special thread of theanchor cuts an internal thread into the member while setting. The anchorage is characterised bymechanical interlock in the special thread.For the installed anchor see Figure given in Annex 1.1.2. Intended useThe anchor is intended to be used for anchorages for which requirements for mechanicalresistance and stability and safety in use in the sense of the Essential Requirements 1 and 4 ofCouncil Directive 89/106/EEC shall be fulfilled and failure of anchorages made with theseproducts would compromise the stability of the works, cause risk to human life and/or lead toconsiderable economic consequences.The anchor is to be used only for anchorages subject to static or quasi-static loading inreinforced or unreinforced normal weight concrete of strength classes C 20/25 at minimum andC 50/60 at most according to EN 206-1: 2000-12. It may be anchored in cracked or uncrackedconcrete.The anchor may only be used in concrete subject to dry internal conditions.The connection of the fixture to the Snake anchor must be made with threaded elements ofgrade ≥ 4.8 only. The use of metric screws is not permittedThe provisions made in this European Technical Approval are based on an assumed intendedworking life of the anchor of 50 years. The indications given on the working life cannot beinterpreted as a guarantee given by the producer, but are to be regarded only as a means forchoosing the right products in relation to the expected economically reasonable working life ofthe works.2 Characteristics of product and methods of verification2.1. Characteristics of productThe Snake screw anchor corresponds to the drawings and provisions given in Annex 1. Thecharacteristic material values, dimensions and tolerances of the anchor not indicated in Annex 1shall correspond to the respective values laid down in the technical documentation 6 of thisEuropean Technical Approval.The characteristic anchor values for the design of anchorages are given in Annexes 3 and 4.6The technical documentation of this European Technical Approval is deposited at the Centre Scientifiqueet Technique du Bâtiment and, as far as relevant for the tasks of the approved bodies involved in theattestation of conformity procedure, is handed over to the approved bodies.