fasteners at great prices. Our EN EN 14399 and EN is European Norm. According to the common obligations undertaken by the participating countries, the adoption of this EN standard will give legal status to the relevant national standards of a member state, or revoke the relevant standards of a certain country that is opposed to it. That is to say, the national standards of member states must be consistent with the EN standards. CENELEC and CEN and their joint body CEN/CENELEC are the leading standards-setting bodies in Europe. CENELEC was established in Brussels, Belgium in 1976, as a result of the merger of two earlier institutions. Its purpose is to harmonize the electrical standards promulgated by the relevant European countries' standards bodies and to eliminate technical barriers to trade.

EN 14399-3 Hex Nut

EN 14399-4-2005 High-strength hex nuts for steel structures - HV type has equivalent norms included: GB/T 18230.4, ISO 7414, DIN EN 14399-4, UNI 5713.

l Difference between EN 14399-3 and EN 14399-4

-3 nuts and EN 14399-4 nuts are high-strength nuts and bolts for preloading. BS EN 14399-3 structural nuts are used for part 3 which belongs to system HR. EN ISO 14399-4 structural nuts are used for part 4 which belongs to system HV.

fastener manufacturers,