This standard, EN 15048:2006, outlines the criteria for high-strength bolts used in a variety of constructions. It specifies aspects such as material grades, dimensions, thread specifications, and tensile {properties|. It also provides procedures for inspection to ensure the quality of engineering bolts. The standard intends to guarantee a uniform

DIN 931 specifies the requirements for hex head screws. These fixings are commonly used in diverse fields, from structural engineering toconstruction. The DIN 931 standard covers dimensions such as head size and thread type. It also defines criteria for material grade and precision. Following DIN 931 ensures reliable connections and improves the