ZNiBolt
DIN 6914 HV Bolt – representative photo

Representative photo. Finish, head marking and packaging follow your order.

Structural Bolts

DIN 6914 HV Structural Bolt (EN 14399-4)

Large-series hexagon head bolt for high-strength preloaded structural connections (HV system), originally DIN 6914 and now EN 14399-4. Class 10.9, supplied with DIN 6915 / EN 14399-4 class 10 nuts and DIN 6916 / EN 14399-6 hardened washers.

Standard
DIN 6914 / EN 14399-4
Equivalents
ISO 7412 (similar)
Sizes
M12 – M36
Lengths
30 – 300 mm
Grades
10.9
Materials
Alloy steel, quenched and tempered
Thread
Metric coarse; HDG sets with oversize-tapped nuts
MOQ
500 pcs per size (negotiable for trial orders)
Request a QuoteWhatsApp
Ldk

Features

  • Larger across-flats than DIN 931
  • Designed for controlled preload
  • Bolt, nut and washer from one lot

Dimensions

HV bolt head (DIN 6914)
Sizes (mm)k (mm)
M12228
M162710
M203213
M223614
M244115
M274617
M305019
M366023

Nominal values in mm for reference. Final dimensions and tolerances follow the referenced standard.

Finishes

FinishAppliedNotes
Hot-dip galvanizedAvailableISO 10684 / ASTM F2329; nuts tapped oversize to suit
Zinc flake (Dacromet/Geomet type)AvailableElectrolyte-free, no hydrogen embrittlement risk
PlainAvailableFor customer-side coating

For property class 10.9 and above, choose zinc flake, or zinc-nickel with hydrogen-embrittlement relief agreed at order stage.

Applications

  • Steel buildings and halls
  • Bridges and towers
  • Crane and plant structures

Ordering terms

MOQ
500 pcs per size (negotiable for trial orders)
Mixed sizes
Welcome in one order
Samples
Samples available — cost and lead time quoted per request
Lead time
15–25 days for standard parts; finishes such as HDG or Dacromet add a few days
Payment
T/T 30% deposit, 70% before shipment
Shipping
FOB Ningbo / CIF / DDP on request
Packaging
Cartons on pallets, or private-label boxes and bags
Documents
Material certificate, coating thickness and salt-spray reports on request
Custom
Drawings, non-standard sizes, coatings, marking and private-label packaging

DIN 6914 HV Bolt FAQ

Do you supply CE-marked EN 14399 assemblies?
Send us your project specification; we confirm CE-marked supply case by case and will not quote CE where it cannot be documented.

Request a quote for DIN 6914 HV Bolt

Tell us size, grade, finish and quantity. We reply with price and lead time within 24 hours.

We reply within 24 hours (China time). Your details are used only to answer this inquiry.

Related products

ASTM A325 Bolt – representative photo

ASTM A325 Heavy Hex Structural Bolt

Ldk

ASTM A490 Heavy Hex Structural Bolt

ASTM F436 Washer – representative photo

ASTM F436 Hardened Structural Washer

splineLd

Tension Control (TC) Bolt — ASTM F3125 F1852 / F2280

All structural bolts