Bolts and nuts connections in steel structure and construction are used to deliver manufactured steel parts more economically and easily or to assemble the parts where they will work.

Additionally, another reason for using the bolt-nut connection is that in some welding constructions, most welding locations cannot be fully accessed. In construction, in case of dynamic stress,

By using high-quality bolts, nuts, washers, and fasteners, impact and dynamic stresses are taken under control.

These bolt and nut connections can be easily used in places affected by large tensile forces. The customer requires bolts, nuts, washers, and fasteners for steel construction, sometimes electro-galvanized and sometimes hot-dip galvanized.

As Intenfa, we supply bolts, nuts, washers, and fasteners from M6 to M200.

Some Bolts Nuts Washers Standards Used in Steel Structures and Constructions :

Bolts: DIN 6914, EN 14399 HV, EN 15048 SB, DIN 7990, DIN 933, DIN 931, ISO 4014, ISO 4017, ASTM A193 

Nuts: DIN 6915, EN14399-4 HV,  DIN 934, DIN 555, ISO 4032, ASTM A194 2H

Washers: DIN 6916, DIN 125, ISO 7089, DIN 127, DIN 7989, ASTM F436