Carriage bolts are a unique design with a squared shank that remains within the hole, preventing rotation and providing a secure fastening. These bolts include a cylindrical head with a square or hexagonal recess, formulated to be driven by a wrench or socket. DIN 603 carriage bolts adhere to the stringent standards set by the German Institute for … Read More


This document, EN 14399:2005, defines the requirements for high-strength structural bolted assemblies. It deals with a comprehensive range of bolted assemblies used in structural applications. The standard provides methods for the design, fabrication, inspection, and testing of bolted assemblies to ensure their reliability. It also specifies the ma… Read More


DIN 931 outlines the standards for hex head screws. These nuts are commonly used in various fields, from structural engineering toassembly. The DIN 931 standard covers sizes such as length and thread form. It also sets standards for material composition and tolerances. Adhering to DIN 931 ensures robust connections and improves the performance of… Read More