HR bolts (EN 14399-3) and HV bolts (EN 14399-4) are the two hexagon-head preloaded bolt systems in the EN 14399 series. Both are designed for the same minimum preload, 0.7 × fub × As, and both are tightened using the methods…
Every fastener we make is forged to hold, not just to fit.
HR bolts (EN 14399-3) and HV bolts (EN 14399-4) are the two hexagon-head preloaded bolt systems in the EN 14399 series. Both are designed for the same minimum preload, 0.7 × fub × As, and both are tightened using the methods…