scope:

This document specifies the characteristics of the following types of dowel-type fasteners:

- nails;

- staples;

- screws;

- dowels;

- 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:

- to fix roof or cladding elements to the timber structure, with or without insulation layers; and

- 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:

- corrosion protection (as Type 1 coating);

- lubrication, to facilitate insertion (as Type 2 coating);

- 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:

- nails (see G.1);

- staples (see G.2);

- screws (see G.3);

- dowels (see G.4); and

- 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.