CONSTRUCTION

High strength Pre-Load Bolt Assemblies HV and HR

M12÷M36*

Grade: HV - 10.9 HR - 8.8, 10.9

* M39÷M56 acc. to DASt- Richtlinie 021

EN DIN

EN-14399-3 – Bolt and Nut

Assemblies, type HR DIN 6914 - Bolts

EN-14399-4 – Bolt and Nut

Assemblies, type HV DIN 6915 - Nuts

EN-14399-5, 6 – Washers DIN 6916 - Washers

EN-14399-8 –Fitted Bolts and

Nut Assemblies, type HV

K-classes of the Bolt Assemblies

Class Value of the k-factor

K0 No requirements

K1 ki – Value of the factor acc. to individual testing in accordance with PN-EN 14399-2

K2

km –average value of the factor acc. to PN-EN 14399-2

Coefficient of variation of the factor k Vk

K1: 0,1 ≤ ki ≤ 0,16

K2: 0,1 ≤ km ≤ 0,23; Vk ≤ 0,1

Elements of HV Assembly: 1pce of HV Bolt acc. to PN EN 14399-4 (DIN 6914), Grade 10.9;

1pce of HV Nut acc. to PN EN 14399-4 (DIN 6915), Grade 10;

2pcs of Washers PN EN 14399-6 (DIN 6916).

Elements of HR Assembly: 1pce of HR Bolt acc. to PN EN 14399-3, Grade 8.8, 10.9;

1pce of HR Nut acc. to PN EN 14399-3, Grade 8, 10;

2pcs of Washers PN EN 14399-6.

Marking of HV and HR Bolt Assemblies

Non Pre-Load Bolt Assemblies SB

M5÷M39

Grade: Bolt: 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9

Nut: 5,6,8,10,12

Washer: min. 100HV, 200HV, 300HV

EN ISO 4014, 4017 - Bolt

EN ISO 4032, 4034 - Nut

EN ISO 7089, 7090, 7091,7092 -

Washer

Marking of SB Bolts Assemblies