1 Scope
This document specifies the characteristics of the following types of dowel-type fasteners:
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— nails;
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— staples;
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— screws;
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— dowels;
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— bolts with nuts.
This document covers dowel-type fasteners for structural use in load bearing timber structures only. This document
covers also the following additional intended uses of the screws:
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— to fix roof or cladding elements to the timber structure, with or without insulation layers; and
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— as reinforcement inserted in timber or in a glue laminated timber element to improve its resistance to compression perpendicular to the grain.
This document covers types of dowel-type fasteners, which are manufactured of either carbon steel or stainless steel
and which may be coated for the following purposes:
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— corrosion protection (as Type 1 coating);
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— lubrication, to facilitate insertion (as Type 2 coating);
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— withdrawal enhancement and/or collation for nails and staples (adhesive and/or resin coatings) (as Type 3 coating).
This document covers types of dowel-type fasteners, which are manufactured from materials and within the specifications
for their geometry related properties, only as they are specified for:
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— nails (see G.1);
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— staples (see G.2);
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— screws (see G.3);
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— dowels (see G.4); and
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— bolts with nuts (see G.5).
This document specifies also the assessment and verification of constancy of performance
(AVCP) procedures of these characteristics and includes provisions for marking of
dowel-type fasteners.
This document does not cover dowel-type fasteners treated with fire retardants to improve their fire performance, nor
does it cover glued-in rods.