Timber structures - Dowel-type fasteners - Requirements

This European Standard specifies the requirements and test methods for materials, geometry, strength, stiffness and durability aspects ( i.e corrosion protection ) of dowel-type fasteners for use in load bearing timber structures. Only dowel-type fasteners manufactured from steel are covered by this European Standard. The aim of this amendment is to correct references for the declared raw materials and to cover resin coated dowel-type fasteners.

Holzbauwerke - Stiftförmige Verbindungsmittel - Anforderungen

Structures en bois - Eléments de fixation - Exigences

Lesene konstrukcije - Paličasta vezna sredstva - Zahteve

General Information

Status
Not Published
Technical Committee
Drafting Committee
Current Stage
5060 - Closure of Vote - Formal Approval
Start Date
08-Mar-2012
Due Date
13-Jun-2012
Completion Date
08-Mar-2012

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SLOVENSKI STANDARD
01-februar-2012
/HVHQHNRQVWUXNFLMH3DOLþDVWDYH]QDVUHGVWYD=DKWHYH
Timber structures - Dowel-type fasteners - Requirements
Holzbauwerke - Stiftförmige Verbindungsmittel - Anforderungen
Structures en bois - Eléments de fixation - Exigences
Ta slovenski standard je istoveten z: EN 14592:2008/FprA1
ICS:
21.060.01 Vezni elementi na splošno Fasteners in general
91.080.20 Lesene konstrukcije Timber structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
EN 14592:2008
NORME EUROPÉENNE
EUROPÄISCHE NORM
FprA1
December 2011
ICS 21.060.01; 91.080.20
English Version
Timber structures - Dowel-type fasteners - Requirements
Structures en bois - Eléments de fixation - Exigences Holzbauwerke - Stiftförmige Verbindungsmittel -
Anforderungen
This draft amendment is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee
CEN/TC 124.
This draft amendment A1, if approved, will modify the European Standard EN 14592:2008. If this draft becomes an amendment, CEN
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this amendment
into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other language made
by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has
the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14592:2008/FprA1:2011: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction .4
1 Modification to the Scope .5
2 Modifications do Clause 2, Normative references .5
3 Modifications to Clause 3, Terms and definitions .6
4 Modification to 5.3, Nominal diameter .7
5 Modifications to 6.1, Nails .7
6 Modification to 6.1.4.3, Characteristic withdrawal parameter .8
7 Modification to 6.1.5, Corrosion protection .8
8 Modification to 6.2.2, Materials .8
9 Modifications to 6.2.3, Geometry .8
10 Modification to 6.2.5, Corrosion protection .9
11 Modification to 6.3.2, Materials .9
12 Modification to 6.3.3, Geometry .9
13 Modification to 6.3.5, Corrosion protection .9
14 Modification to 6.4.2, Materials .9
15 Modification to 6.4.3, Geometry . 10
16 Modification to 6.4.5, Corrosion protection . 10
17 Modification to 6.5.5, Corrosion protection . 10
18 Modifications to 7.2.2.2, Testing and compliance criteria . 10
19 Modifications to 7.3, Factory production control . 13
20 Modification to 8.2, Nails . 14
21 Modification to 8.3, Staples . 14
22 Modification to Annex A . 14
23 Deletion of Annex B . 14
24 Modifications to Annex ZA . 15

Foreword
This document (EN 14592:2008/FprA1:2011) has been prepared by Technical Committee CEN/TC 124
“Timber structures”, the secretariat of which is held by AFNOR.
This document is currently submitted to the Unique Acceptance Procedure.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
Introduction
This amendment allows further types of stainless steel and carbon steel to be used for fasteners and permits
for some types of coating of the fasteners. This ensures that products marketed before the first version of this
standard was issued can fulfill the requirements. Furthermore, lacks of consistence with EN 1995-1-1 have
been corrected.
1 Modification to the Scope
Replace:
"This European Standard does not cover resin coated dowel-type fasteners and fasteners treated with fire
retardants to improve their fire performance. It also does not cover resin coated fasteners."
with:
"This European Standard does not cover fasteners treated with fire retardants to improve their fire
performance.
This European Standard covers fasteners that may be coated for the following purposes:
1 Corrosion protection (e.g. hot dip galvanization, epoxy coating);
2 Lubricants (to facilitate insertion);
3 Withdrawal enhancement and/or collation (adhesive coating).".
2 Modifications do Clause 2, Normative references
Replace:
"EN 10088-1, Stainless steels - Part 1: List of stainless steels
EN 10088-2, Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for general purposes"
with:
"EN 10088 (all parts), Stainless steels".
Replace:
"EN 10230-1, Steel wire nails - Part 1: Loose nails for general applications".
with:
"EN 10263 (all parts), Steel rod, bars and wire for cold heading and cold extrusion
EN 10269, Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties".
Add:
"EN 10277-2, Bright steel products - Technical delivery conditions - Part 2: Steels for general engineering
purposes",
"EN 15737, Timber structures - Test methods - Torsional resistance of driving in screws" and
"EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature
(ISO 6892-1:2009)".
Delete the references to EN 10278 and ISO 286-2.

3 Modifications to Clause 3, Terms and definitions
In 3.2, threaded nail, add to the text line:
“l as defined in Figure 1 b”.
g
Replace Figure 1 with the following: "

Figure 1 a – Nominal diameter d and length l of nails
lg
Figure 1 b – Length of the threaded part l of nails and screws
g
Figure 1 – Nominal diameter, length and length of the threaded part of nails and screws".
Replace 3.10 effective screw diameter and all text inclusive the NOTE with: "
3.10
thread root diameter
inner diameter of the threaded part, see Figures 1 and 3
NOTE The inner diameter is used in EN 1995-1-1 to determine the effective diameter.”.
Add: "
3.12
coating type
defines the purpose of a coating
Coating type 1: Corrosion protection
Coating type 2: Lubricant to facilitate insertion
Coating type 3: Adhesive coating for improving withdrawal strength and/or for collation purposes".
4 Modification to 5.3, Nominal diameter
Second indent, replace "maximum" with "minimum".
5 Modifications to 6.1, Nails
Replace the content of 6.1.1 with "Void".
In 6.1.2, Materials, replace:
"EN 10083-1 or EN 10088-2.".
with:
"EN 10088. The relevant specification shall be declared.
Other steel grades may be used, provided it has been documented that the steel has at least equivalent
mechanical properties to any of the grades listed in the above standards. All relevant information of the
alternative steel grades shall be obtained from testing and declared as a part of the ITT.".
In 6.1.3, Geometry, third paragraph, replace:
"1,5 d"
with:
"2,5 d".
In 6.1.3, Geometry, fifth paragraph, replace:
"Dimensional tolerances for nails shall comply with the requirements of EN 10230-1"
with:
“If nails are coated with a type 3 coating, the coated length shall be at least 0,5 l.”.
Replace the figure of Figure 2 with the following: "

".
Delete the note below Figure 2.
6 Modification to 6.1.4.3, Characteristic withdrawal parameter
Delete first paragraph:
"Characteristic withdrawal parameter f of plain shank nails shall be less than 4,5 N/mm when measured on
ax,k
timber with a characteristic density of 350 kg/m when conditioned to constant mass at 20 ºC and 65 %
relative humidity.".
7 Modification to 6.1.5, Corrosion protection
Replace all the present text with:
“For nails, where corrosion protection is required, the grade of the parent material or thickness of coating shall
be declared.
NOTE Examples of corrosion protection or material specifications for different service classes are given in
EN 1995-1-1 and Annex A.”.
8 Modification to 6.2.2, Materials
Replace:
"EN 10088-2"
with:
"EN 10088. The relevant specification shall be declared.
Other steel grades may be used, provided it has been documented that the steel has at least equivalent
mechanical properties to any of the grades listed in the above standards. All relevant information of the
alternative steel grades shall be obtained from testing and declared as a part of the ITT.".
9 Modifications to 6.2.3, Geometry
Replace subclasses a) and b) with: "
a) for staples with rectangular or circular or deformed-circular cross-section with cross-section area A,
the leg diameter shall be taken as dA= 4/ π , provided that maximum cross-sectional dimension
measured around the perimeter is not larger than 1,2 times than the minimum dimension,
b) if the maximum dimension is larger than 1,2 times the minimum dimension only the area within a
rectangular mask with side lengths equal to the minimum dimension and 1,2 times the minimum
dimension should be taken into account,".
Add: "
e) if staples are coated with a type 3 coating, the coated length shall be at least 0,5 l.".
10 Modification to 6.2.5, Corrosion protection
Replace all the present text with:
“For staples, where corrosion protection is required, the grade of the parent material or thickness of coating
shall be declared.
NOTE Examples of corrosion protection or material specifications for different service classes are given in
EN 1995-1-1 and Annex A.”.
11 Modification to 6.3.2, Materials
Replace all the text with:
"Screws shall be produced from mild steel or carbon steel wire, drawn from rods produced in accordance with
EN 10083-2, EN 10263, EN 10269 or EN 10016, or austenitic stainless steel wire drawn from rods produced
in accordance with EN 10083-1 or EN 10088. The relevant specification shall be declared.
Other steel grades may be used, provided it has been documented that the steel has at least equivalent
mechanical properties to any of the grades listed in the above standards. All relevant information of the
alternative steel grades shall be obtained from testing and declared as a part of the ITT.".
12 Modification to 6.3.3, Geometry
In the
...

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