Hexagon Head Bolts EN ISO 4014 - DIN 931
Hexagon head screws conforming to the standard EN ISO 4014 and DIN 931 are a widely used type of threaded fasteners. These bolts feature a six-sided socket, which allows for reliable tightening using a six-sided wrench. They are commonly used in a variety of applications, including construction engineering, where their strength and precise measurem