EN15048 SB is a European standard that specifies the general requirements for non-preloaded structural bolts. Bolted connections in accordance with this European standard are designed for use in structural bolted connections for shear and/or tensile loads. The use of bolted connections in accordance with this European standard is mainly applicable in metal structures.

For application EN15048 standard;

It applies to bolts (the term used when partially threaded bolts, screws, engineering studs and stud bolts are considered as a whole) and nuts made of carbon steel or alloy steel with the following property classes:

Bolts made of carbon steel and alloy steel: 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 10.9

(in accordance with EN ISO 898-1);

Nuts made of carbon steel and alloy steel: 5, 6, 8, 10, 12 (in accordance with EN ISO 898 2).

This European standard applies to bolted connections with ISO metric threads of:

MI2 to M36 (for use in steel structures according to EN1090-2);

M5 to M39 (for use in structures made of aluminium or aluminium alloys according to EN1090-3).

The use of threads with a larger diameter than M39 is not excluded, provided that all applicable

Only bolted connections are covered by this harmonized standard: loose bolts or nuts, which have not been tested as part of a batch of bolted connections in accordance with EN15048-2, are not covered by this harmonized standard and cannot be CE marked

Strength 4.8, 5.8 and 6.8 may be subject than restrictions on use.

High strength (HV) bolted connections for preload tensioning that meet the requirements of EN 14399-1 are not within the scope of this European standard, but are also suitable for use in non-preloaded bolted connections for metal structures.

EN 15048 does not specify dimensions, tolerances on dimensions, shape and position to be in accordance with relevant product standards

Common standards

Hexagon head bolts: ISO 4014, 4017

Hex nuts: ISO 4032

Washers: ISO 7089, 7090, 7091, 7092, 7093