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CE-MARKED MAXXFAST WOOD SCREWS

European legislation has a great deal of impact on business. As a result of different European directives and regulations, manufacturers must carefully create their products in accordance with these rules. One of such rules is the ELV (200/53/EC), a directive that, among other facets, regulates the use of Cr(VI). Another more recent regulation is the so-called Construction Products Regulation (CPR, 305/2011). This regulation contains seven essential characteristics with which (steel) constructions and structures must comply. In order to simplify these requirements for building and construction companies, the CEN (the European standardization body) issued Eurocodes, a set of standards that, if adhered to, ensure that the end product is compliant with the European legislation.

EUROPEAN HARMONIZED STANDARDS

These Eurocodes point to other European (product) standards that serve the same purpose: compliance with the law. These standards are called ‘harmonized’ European standards, as they include an annex ZA, which references their adherence to the standard with the CPR. According to these standards, products must be marked as CE so their conformity to the European legislation is clear. Currently, only a few harmonized standards for fasteners exist; for example, EN 14399-1, EN 15048-1, EN 1515-4 and EN 14592 to name a few. 

EN 14592 TIMBER STRUCTURES – DOWEL-TYPE FASTENERS

The EN 14592 requirements is a harmonized product standard for fasteners that are used in timber (wood) structures. Apart from wood screws, there are also requirements for nails, staples and pins, among others. For wood (construction) screws, the standard provides clear requirements:
 
  • The material (steel or stainless steel) must conform to certain European standards.
  • Thread length must be a minimum of four times the nominal diameter d.
  • Minor diameter of the thread must be between 60% to 90% of the major diameter.
  • The mechanical properties must be declared:
         a.   characteristic yield moment
         b.   characteristic withdrawal parameter
         c.   characteristic head pull-through parameter
         d.   characteristic tensile capacity
         e.   characteristic torsional ratio.

DOP – DECLARATION OF PERFORMANCE

All of such data must be declared on a Declaration of Performance, known also as a DoP. This is a document that must be made freely available to everyone concerned with the product.
 
It should also be noted that there are no threshold values given for the mechanical properties, so there is no ideal characteristic tensile capacity, nor a bad one, just that which is declared in the DoP.
 
All of Fabory’s MaxxFast wood screws, except for diameters 3 and 3.5, have been tested by a notified body, and the test results are included in the DoPs. For each of the mechanical properties associated with the behavior of the screws when interacting with wood (withdrawal, pull-through), the density and type of wood is mentioned. These data are therefore for reference only, as the screws will act differently in other wood types.
 
The DoP is available in the following languages:
  • Czech
  • Dutch
  • English
  • French
  • Hungarian
  • Polish
  • Portuguese
  • Romanian
  • Slovak
Every DoP is visible and can be downloaded as a PDF from the web shop. The DoPs are found on each article’s page under “Product Information” tab, and they will be visible in the local language.

CE MARKING

Another requirement in EN 14592 is that all screws must be marked as CE. All new MaxxFast boxes feature the familiar CE mark, the certificate number and a reference to their intended use. The CE marking enables a product to be legally placed on the market in any Member State of the EC. In our catalog, all affected groups are marked with CE.