High strenght structural nuts

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EN 14399-6 H BL

High-strength structural washer in black finish

EN 14399-6 H ZP

High-strength structural washer in zinc plated finish

EN 14399-6 H HDG

High-strength structural washer and hot-dip galvanized finish

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High-strength structural washers are designed to ensure even load distribution and maintain tightening stability in joints subjected to high stresses. At CHAVESBAO, we supply washers for structural systems, suitable for prestressed or non-prestressed joints where safety, strength and regulatory compliance are essential.

They are used in metal structures, bridges, industrial buildings, towers and rolled steel joints, as well as in applications subject to dynamic loads, vibration or shear and tensile stresses. Their manufacture in accordance with European standards ensures compatibility with high-strength bolts and nuts used in metal construction.

EN 14399-6 washers for structural joints

EN 14399-6 structural washers (H series) are part of high-strength bolting systems for steel structures. Their greater thickness and hardness ensure that the pressure generated during tightening is distributed correctly, preventing deformation and ensuring the mechanical performance of the assembly.

EN 14399-6 H – Black finish
For indoor installations or applications where additional corrosion protection is not required.

EN 14399-6 H ZP – Zinc finish
Provides corrosion protection for indoor installations with moderate humidity or industrial environments.

EN 14399-6 H HDG – Hot-dip galvanised
The recommended option for outdoor use, exposed structures or aggressive environments. Its thick coating provides long-lasting protection against corrosion.

All EN 14399-6 structural washers are designed to work in conjunction with bolts and high-strength nuts EN 14399 (HV), ensuring dimensional compatibility and the mechanical performance required by the European standard.

When to use high-strength structural washers

This type of washer is necessary when:

The joint is part of a metal structure with high loads.
They are used high-strength bolts (8.8 / 10.9 HV for structures).
It is necessary to ensure the correct distribution of pressure when tightening.
The assembly is subject to vibration, traction or dynamic stresses.
Regulations require the use of complete EN 14399 sets.

They are especially recommended for pre-stressed joints, critical joints, thick plate joints and assemblies where structural safety depends on the correct functioning of the bolt-nut-washer assembly.

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