EN 14399-4:2005

High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies

This part of this European standard Standard specifies together with prEN 14399-1 the requirements for assemblies of high-strength structural bolts and nuts of system HV suitable for preloaded joints with large widths across flats, thread sizes M 12 to M 36 and property classes 10.9/10.
Bolt and nut assemblies to this part of this European Standard have been designed to allow preloading of at least 0,7 fub ´ As  *)   according to ENV 1993-1-1 (Eurocode 3) and to obtain ductility predominantly by plastic deformation of the engaged threads. For this purpose the components have the following characteristics:
¾ nut height approximately 0,8 d
¾ bolt with short thread length
Bolt and nut assemblies to this part of this European standard Standard include washers according to prEN 14399-6 or to prEN 14399-5 (under the nut only).
NOTE   Attention is drawn to the importance of ensuring that the bolts are correctly used if satisfactory result are to be
obtained. For recommendations concerning proper application, reference to ENV 1090-1 is made.
The test method for suitability for preloading is specified in prEN 14399-2.
Clamp lengths for the bolt/nut/washer assemblies are given in the normative Annex annex A.

Hochfeste planmäßig vorspannbare Schraubenverbindungen für den Metallbau - Teil 4: System HV - Garnituren aus Sechskantschrauben und -muttern

Dieser Teil dieser Europäischen Norm enthält, zusammen mit prEN 14399-1, die Anforderungen für hochfeste
Garnituren mit Stahlbauschrauben und -muttern des Systems HV mit großer Schlüsselweite in den Abmessungen M12 bis M36 und den Festigkeitsklassen 10.9/10, die für vorspannbare Schraubenverbindungen geeignet sind.
Die Garnituren aus Schrauben und Muttern, die diesem Teil dieser Europäischen Norm entsprechen, wurden so gestaltet, dass sie ein Vorspannen auf mindestens 0,7 fub´As*) in Übereinstimmung mit ENV 1993-1-1 (Eurocode 3) erlauben, und dass sie ihr Verformungsvermögen vorwiegend durch plastische Verformung der gepaarten Ge-
winde erreichen. Zu diesem Zweck weisen die Komponenten folgende Merkmale auf:
- Mutterhöhe etwa 0,8 d
- Schraube mit kurzem Gewinde
Garnituren aus Schrauben und Muttern, die diesem Teil dieser Europäischen Norm entsprechen, beinhalten
Scheiben nach prEN 14399-6 oder nach prEN 14399-5 (nur unter der Mutter).
ANMERKUNG   Es wird darauf hingewiesen, dass zufriedenstellende Ergebnisse nur dann erzielt werden, wenn sichergestellt ist, dass die Schrauben sachgerecht eingesetzt werden. Für Empfehlungen zur richtigen Anwendung wird auf ENV 1090-1 verwiesen.
Die Prüfung der Eignung für das Vorspannen ist in prEN 14399-2 festgelegt.
Klemmlängen für Garnituren Schraube/Mutter/Scheibe sind im normativen Anhang A angegeben.

Boulonnerie de construction métallique à haute résistance apte à la précontrainte - Partie 4 : Système HV - Boulons à tête hexagonale (vis + écrou)

La présente partie de cette Norme européenne avec le prEN 14399-1, spécifie les exigences applicables aux vis et écrous des boulons pour construction à haute résistance du système HV, à surplat de série large, de diamètre de filetage de M12 et M36 et de classe de qualité 10.9/10, utilisables dans les assemblages précontraints.
Les ensembles vis et écrous conformes à la présente partie de cette Norme européenne ont été conçus de manière à permettre une précontrainte d'au moins 0,7 fub x As ) conformément à l'ENV 1993-1-1 (Eurocode 3) et à obtenir la ductilité principalement par déformation du filetage en prise. Pour ce faire, les éléments doivent avoir les caractéristiques suivantes :
¾ hauteur d'écrou d'environ 0,8 d ;
¾ vis de longueur filetée réduite.
Les ensembles vis et écrous conformes à la présente partie de cette Norme européenne comportent une ou deux rondelle(s) conforme(s) au prEN 14399-5 (sous l'écrou uniquement) ou au prEN 14399-6.
NOTE   Il est important de s'assurer que les boulons sont utilisés de façon correcte afin d'obtenir un résultat satisfaisant. Pour les recommandations relatives à une bonne utilisation, se référer à l'ENV 1090-1.
La méthode d'essai de l'aptitude à la mise en précontrainte est spécifiée dans le prEN 14399-2.
Les longueurs de serrage pour les ensembles vis/ écrou/ rondelles(s) sont données dans l'Annexe A normative.

Visokotrdnostne strukturne vijačne zveze za prednapetje - 4. del: Sistem HV - Zveze vijakov s šestrobo glavo in šestrobo matico

General Information

• Status: Withdrawn
• Publication Date: 15-Mar-2005
• Withdrawal Date: 17-Feb-2015
• ICS: 21.060.01 - Fasteners in general
• ICS: 21.060.10 - Bolts, screws, studs
• ICS: 21.060.20 - Nuts
• Technical Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Drafting Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 18-Feb-2015
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Mandate: M/120 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on structural metallic products and ancillaries
• Ref Project: SIST EN 14399-4:2005 - High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies

Relations

• Replaced By: EN 14399-4:2015 - High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies
• Effective Date: 08-Jun-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hochfeste planmäßig vorspannbare Schraubenverbindungen für den Metallbau - Teil 4: System HV - Garnituren aus Sechskantschrauben und -mutternBoulonnerie de construction métallique a haute résistance apte a la précontrainte - Partie 4 : Systeme HV - Boulons a tete hexagonale (vis + écrou)High-strength structural bolting assemblies for preloading - Part 4: System HV - Hexagon bolt and nut assemblies21.060.20MaticeNuts21.060.10Sorniki, vijaki, stebelni vijakiBolts, screws, studsICS:Ta slovenski standard je istoveten z:EN 14399-4:2005SIST EN 14399-4:2005en01-maj-2005SIST EN 14399-4:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14399-4March 2005ICS 21.060.10; 21.060.20English versionHigh-strength structural bolting assemblies for preloading - Part4: System HV - Hexagon bolt and nut assembliesBoulonnerie de construction métallique à haute résistanceapte à la précontrainte - Partie 4 : Système HV - Boulons àtête hexagonale (vis + écrou)Hochfeste planmäßig vorspannbareSchraubenverbindungen für den Metallbau - Teil 4: SystemHV - Garnituren aus Sechskantschrauben und -mutternThis European Standard was approved by CEN on 30 April 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14399-4:2005: ESIST EN 14399-4:2005

Clamp lengths.15 Bibliography.17
This document includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun-tries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Esto-nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 14399-4:2005

Bolt/nut/washer assembly System HR Bolt/nut/washer assembly System HV General requirements EN 14399-1 Bolt/nut assembly EN 14399-3 EN 14399-4 Marking HR HV Property classes 8.8/8 10.9/10 10.9/10 Washer(s) EN 14399-5 or EN 14399-6 EN 14399-5 or EN 14399-6 Marking H H Suitability test for preloading EN 14399-2 EN 14399-2
Preloaded bolted assemblies are very sensitive to differences in manufacture and lubrication. Therefore it is important that the assembly is supplied by one manufacturer who is always responsible for the function of the assembly. For the same reason it is important that coatings of the assembly is under the control of one manufacturer. Beside the mechanical properties of the components, the functionality of the assembly requires that the specified pre-load can be achieved if the assembly is tightened with a suitable procedure. For this purpose a test method for the suitability of the components for preloading was created which will demonstrate whether the function of the assembly is fulfilled. It should be pointed out that compared to ISO 272 the widths across flats (large series) for M12 and M20 have been changed to 22 mm and 32 mm respectively. These changes are justified by the following reasons. Under the specific conditions of structural bolting the compressive stresses under the bolt head or nut for the sizes M12 may become too large with the width across flats of 21 mm, especially if the washer is fitted excentrically to the bolt axis. For the size M20, the width across flats of 34 mm is very difficult to be produced. The change to 32 mm is primarily motivated by economics but it should also be pointed out that the width across flats of 32 mm is already common practice in Europe. For the time being, the product standards EN 14399-3 to EN 14399-6 are the only European Standards which have regard to the general requirements of EN 14399-1. However, further product standards on  fit bolts,  countersunk head bolts, and  load indicating washers for the use in high strength structural bolting for preloading are under preparation. SIST EN 14399-4:2005

obtained. For recommendations concerning proper application, reference to ENV 1090-1 is made. The test method for suitability for preloading is specified in EN 14399-2. Clamp lengths for the bolt/nut/washer assemblies are given in the normative Annex A. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 493, Fasteners — Surface discontinuities — Nuts. EN 10045-1, Metallic materials — Charpy impact test — Part 1: Test method. EN 14399-1, High-strength structural bolting assemblies for preloading — Part 1: General requirements. EN 14399-2, High-strength structural bolting assemblies for preloading — Part 2: Suitability test for preloading. EN 14399-5, High-strength structural bolting assemblies for preloading — Part 5: Plain washers. EN 14399-6, High-strength structural bolting assemblies for preloading — Part 6: Plain chamfered washers. EN 20898-2, Mechanical properties of fasteners — Part 2: Nuts with specified proof load values — Coarse thread (ISO 898-2:1992). EN 26157-1, Fasteners — Surface discontinuities — Part 1: Bolts, screws and studs for general requirements (ISO 6157-1:1988). EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs (ISO 898-1:1999). EN ISO 3269, Fasteners — Acceptance inspection (ISO 3269:2000). EN ISO 4759-1,
Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C (ISO 4759-1:2000).
1)
fub is the nominal tensile strength (Rm) and As the stress area of the bolt. SIST EN 14399-4:2005

3 Bolts 3.1
Dimensions of bolts See Figure 1 and Table 2.
NOTE The difference between lg and ls should not be less than 1,5 P. Key a Incomplete thread u ≤ 2P b 15° to 30° Figure 1 — Dimensions of bolts SIST EN 14399-4:2005

M12 M16 M20 M22 M24 M27 M30 M36
Pb 1,75 2 2,5 2,5 3 3 3,5 4
b (ref).
23 28 33 34 39 41 44 52
min. 0,4 0,4 0,4 0,4 0,4 0,4 0,4 0,4
c
max. 0,6 0,6 0,8 0,8 0,8 0,8 0,8 0,8
da
max. 15,2 19,2 24 26 28 32 35 41
nom. 12 16 20 22 24 27 30 36
min. 11,3 15,3 19,16 21,16 23,16 26,16 29,16 35
ds
max. 12,7 16,7 20,84 22,84 24,84 27,84 30,84 37
min. 20,1 24,9 29,5 33,3 38,0 42,8 46,6 55,9
dw
max. c c c c c c c c
e
min. 23,91 29,56 35,03 39,55 45,20 50,85 55,37 66,44
nom. 8 10 13 14 15 17 19 23
min. 7,55 9,25 12,1 13,1 14,1 16,1 17,95 21,95
k
max. 8,45 10,75 13,9 14,9 15,9 17,9 20,05 24,05
kw
min. 5,28 6,47 8,47 9,17 9,87 11,27 12,56 15,36
r
min. 1,2 1,2 1,5 1,5 1,5 2 2 2
max. 22 27 32 36 41 46 50 60
s
min. 21,16 26,16 31 35 40 45 49 58,8 l ls and lg d
ls lg ls lg ls lg ls lg ls lg ls lg ls lg ls lg nom. min. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max.min.max. 35 33,75
36,25
6,75 12
40 38,75
41,25 11,75 17
6 12
45 43,75
46,25 16,75 22 11 17
4,5 12
50 48,75
51,25 21,75 27 16 22
9,5 17
8,5 16
55 53,5
56,5
26,75 32 21 27 14,5 22 13,5 21
60 58,5
61,5 31,75 37 26 32 19,5 27 18,5 26 12 21
65 63,5
66,5 36,75 42 31 37 24,5 32 23,5 31 17 26
70 68,5
71,5 41,75 47 36 42 29,5 37 28,5 36 22 31 20 29
75 73,5
76,5 46,75 52 41 47 34,5 42 33,5 41 27 36 25 34 20,5 31
80 78,5
81,5 51,75 57 46 52 39,5 47 38,5 46 32 41 30 39 25,5 36
85 83,25
86,75 56,75 62 51 57 44,5 52 43,5 51 37 46 35 44 30,5 41 21 33 90 88,25
91,75 61,75 67 56 62 49,5 57 48,5 56 42 51 40 49 35,5 47 26 38
(concluded) Dimensions in millimetres Thread d
M12 M16 M20 M22 M24 M27 M30 M36 l ls and lg d
ls lg ls lg ls lg ls lg ls lg ls lg ls lg ls lg nom. min. max. min. max.min. max. min. max. min. max. min. max. min. max. min. max.min.max.
93,25
96,75 66,75 72 61
54,5
62 53,5
45 54
40,5
43 100
98,25
101,75
59,5
67 58,5
50 59
45,5
48 105
103,25
106,75
64,5
72 63,5
55 64
50,5
53 110
108,25
111,75
69,5
77 68,5
60 69
55,5
58 115
113,25
116,75
74,5
82 73,5
65 74
60,5
63 120
118,25
121,75
79,5
87 78,5
70 79
65,5
68 125
84,5
92 83,5
75 84
70,5
73 130
96 102
89,5
97 88,5
80 89
75,5
78 135
94,5102 93,5 101
85 94
80,5
83 140
99,5107 98,5 106
92 101
90 99
85,5
88 145
104,5112 103,5111
97 106
95 104
90,5 101
93 150
109,5117 108,5116 102 111 100 109
95,5 106
98 155
114,5122 113,5121 107 116 105 114 100,5 111
91103 160
118,5126 112 121 110 119 105,5 116
96108 165
123,5131 117 126 115 124 110,5 121 101113 170
122 131 120 129 115,5 126 106118 175
127 136 125 134 120,5 131 111123 180
132 141 130 139 125,5 136 116128 185
182,7
189,6
137 146 135 144 130,5 141121133 190
187,7
194,6
142 151 140 149 135,5 146126138 195
192,7
199,6
147 156 145 154 140,5 151131143 200
197,7
204,6
150 159 147,5 156136148 NOTE The popular lengths are defined in terms of lengths ls, min and lg, max. a For hot-dip galvanized bolts, the dimensions
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