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SPECIFICATIONS

General Requirement EN 14399-1
Tolerance 6ga
International Standards ISO 261, ISO 965-2
Property Class 10.9
European Standard EN ISO 898-1

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Product: High strength pre-load bolt assemblies HV

Standard: DAst Richtlinie021/EN 14399/DIN 6914/DIN 6915/ DIN 6916 - HV bolts

Property class: 10.9

Certificate: EN10204 3.1 with full traceability 10 years, otherwise specified

Surface coating available: Plain, Dacromet, Black, Geomet, HDG, Dorken, Delta, Electro plated, TZN

Suitability test for preloading: EN 14399-2

 

Elements of HV Assembly:

* 1 pcs of HV bolt acc to EN 14399-4(DIN 6914), Grade 10.9

* 1 pcs of HV nut acc to EN 14399-4(DIN 6915), Grade 10.9

* 2 pcs of washers EN 14399-6(DIN 6916)

 

Elements of HR Assembly:

* 1 pcs of HR bolt acc. to EN 14399-3, Grade 8.8, 10.9;

* 1 pcs of HR nut acc. to EN 14399-3, Grade 8, 10;

* 2 pcs of Washers EN 14399-6

Specifications For Bolts And Reference Standards

Material

Steel

General Requirement

EN 14399-1

Thread

Tolerance

6ga

International Standards

ISO 261, ISO 965-2

Mechanical properties

Property Class

10.9

European Standard

EN ISO 898-1

Impact Strength

Value

K V, min = 27 J at – 20 °C

Test pieceb

ISO 148

Test

EN 10045-1

Tolerances

Product grade

C except:

dimensions c and r.

Tolerance for lengths ≥ 155 mm: +IT 17 -1/2 IT17

International Standard

EN ISO 4759-1

Surface finishc

Normal

as processedd

hot dip galvanized

EN ISO 10684

Others

to be agreede

Surface discontinuities

Limits for surface discontinuities as specified in EN 26157-1.

Acceptability

For acceptance procedure, see EN ISO 3269.

 

Specifications For Nuts And Reference Standards

Material

Steel

General Requirement

EN 14399-1

Thread

Tolerance

6H or 6AZ

International Standards

ISO 261, ISO 965-2, ISO 965-5

Mechanical properties

Property Class

10

European Standard

EN 20898-2

Tolerances

Product grade

B

International Standard

EN ISO 4759-1

Surface finish

Normal

as processeda

hot dip galvanized

EN ISO 10684

Others

to be agreedb

Surface discontinuities

Limits for surface discontinuities as specified in EN 493.

Acceptability

For acceptance procedure, see EN ISO 3269.

 

Quality Inspection Laboratories

Inspection Laboratory features:

•Tensile and compression testing machines (600kN and 2000kN)

•Hardness tester (Brinell and Vickers)

•Hardness tester (HV0,3-HV30)

•Charpy impact tester 300J with cooling equipment down to -100°C

•Torque – tension testing machine (M12 – M64)

•Spectrometer for chemical analysis

•Elcometers for coating thickness measurements

• Measuring tools and gauges for dimensional inspection

•Stereo, optical, and inverted axial microscopes for metallurgical analysis

• Magnetic particle testing equipment


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