Hot-dip galvanised steel, hardness 300 HV to 370 HV. High-strength screw connections preloaded for metal construction according to DIN EN 14399-6.
Suitable for screw thread : M16
Internal diameter (d1) : 17 mm
Outer diameter (d2) : 30 mm
Thickness (h1) : 4 mm
Standards : EN 14399-6
Material : Steel
Min./max. Vickers hardness, HV : 300-370 HV
Surface : Hot dip galvanized
Area of application : Steel construction
Suitable for : High-strength friction connections in steel structures
Construction product : Yes
Declaration of performance (EU-CPR) : Yes
RoHS-compliant : Yes
Washers in accordance with this standard are intended for high-strength fittings in accordance with DIN EN 14399-4.
"Only use complete sets (screws, nuts and washers) from one manufacturer." (Extract from DIN EN 1993-1-8/NA:2010-12).
The design of steel structures with high-tensile pre-stressed fittings is regulated in standards DIN EN 1090-2 and DIN EN 1993-1-8/NA.
Storage and Transport
The screws, nuts and washers are supplied in a hot-dip galvanised design with nut lubricated under process conditions. The female thread of the nut is not hot-dip galvanised and is only protected from corrosion by the applied lubrication. Improper storage or transport conditions may cause corrosion of the female thread or a change in the condition of the factory-supplied lubrication, thus changing the relationship between tightening torque and pre-tension force.
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