Technical data for High-strength structural bolting assemblies for preloading - - Part 7: System HR - Countersunk head bolt and nut assemblies

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This product is regulated by the following standards:

Standard DIN EN 14399 7

Equivalent standards

UNI EN 14399 7
NF EN 14399 7
BS EN 14399 7

High-strength structural bolting assemblies for preloading - - Part 7: System HR - Countersunk head bolt and nut assemblies

Bolts - dimensions in mm - source DIN EN 14399 7 Pubblication date 06/2019 Supersedes DIN EN 14399 7 03/2008
d thread size	P	b l<=125	b l>125 <=200	b l>200	dk min÷max	k nom.	i min÷max	ds min÷max	n min÷max	t min÷max
M 12	1.75	30	-	-	23.16÷24	8	15.5÷16.5	11.3÷12.7	2.5÷3	3÷4.5
M 14	2	34	40	-	27.16÷28	9	18.5÷19.5	13.3÷14.7	2.5÷3	3÷4.5
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 36

Nuts - dimensions in mm - source EN 14399-7 Publication date : 06/2019 Supersedes DIN EN 14399 7 03/2008
d thread size	Pitch	dw min	s nom	e min	m max	m min	c max
M 12	1.75	20.1	22	23.91	10.8	10.37	0.8
M 14	2	21.86	24	27.12	12.8	12.1	0.8
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 36

Bolts - dimensions in mm - source EN 14399-7 Publication date: 03/ 2008
d thread size	P	b l<=125	b l>125 <=200	b l>200	dk min÷max	k nom.	i min÷max	ds min÷max	n min÷max	t min÷max
M 12	1.75	30	-	-	23.16÷24	8	15.5÷16.5	11.3÷12.7	2.5÷3	3÷4.5
M 16	2	38	44	-	31.16÷32	10	21.5÷22.5	15.3÷16.7	2.5÷3	3÷4.5
M 20
M 22
M 24
M 27
M 30
M 36

Nuts - dimensions in mm - source EN 14399-7 Publication date: 03/ 2008
d thread size	Pitch	dw min	s nom	e min	m max	m min	c max
M 12	1.75	20.1	22	23.91	10.8	10.37	0.8
M 14	2	21.86	24	27.12	12.8	12.1	0.8
M 16
M 18
M 20
M 22
M 24
M 27
M 30
M 36

Table 1 - Systems of bolt/nut/washer assemblies
Description	Bolt/nut/washer assembly System HR - Garniture aus Schrauben/Muttern und Scheiben System HR - Assieme bullone/dado/rondella sistema HR	Bolt/nut/washer assembly System HV - Garniture aus Schrauben/Muttern und Scheiben System HV - Assieme bullone/dado/rondella sistema HV
General requirements Allgemeine Anforderungen Requisiti generali	EN 14399-1
Bolt/nut assembly - Garnitur aus Schraube und Mutter - assieme bullone/dado	EN 14399-3	EN 14399-4
Marking - Kennzeichnung - Marcatura
Property classes - Festigekeitklasse - Classi di resistenza
Washers - Scheiben - Rondelle
Marking - Kennzeichnung - Marcatura
Suitability test for preloading - Eignungsprüfung für das Vorspannen - Prova di idoneità all'impiego

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH,Burggrafenstraße 6, 10787 Berlin, Germany.
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Technical data for High-strength structural bolting assemblies for preloading - - Part 7: System HR - Countersunk head bolt and nut assemblies

This product is regulated by the following standards:

Standard DIN EN 14399 7

High-strength structural bolting assemblies for preloading - - Part 7: System HR - Countersunk head bolt and nut assemblies

Suppliers of High-strength structural bolting assemblies for preloading - - Part 7: System HR - Countersunk head bolt and nut assemblies

Producer of hot forging fasteners, sizes fom M14 to M64. Fasteners following EN 14399 norm

Suppliers of standard fasteners and manufacturer of special fasteners, structural bolting and oil&gas fasteners

Manufacturer and distributor of fasteners

Manufacturer of hot pip galvanized and high tensile fasteners for the steel industry

Distributor of fastener, fixing and tools, high strenght fasteners

Manufacturer of nib bolts, cup square bolts and high strength friction grip bolts from M6 to M75

Producer of stainless steel fasteners and high-tensile structural bolting

Manufacturer of cold forged automotive fasteners. Diameters from 12 to 30 mm and lengths from 20 to 180mm.

Manufacturer of standard and special fasteners, from M4 to M30, from 1/4" to 1-1/4". Lengths from 10 to 300mm and from 1/2" to 12".

Leading manufacturer & exporter of low tensile 4.6 / 5.6 / 6.8 & Hi-tensile (8.8, 10.9 & 12.9) fasteners since 1964. Hexagon bolts, hexagon nuts, spring washers, crash barrier bolts.