boutschroeven

Boutschroeven are fasteners designed to join components by means of external threads that engage with a nut or a tapped hole. They consist of a cylindrical shaft with a head and a helical thread, and are tightened to create a clamping force between parts.

Common types include hex bolts (hexagonal head), carriage bolts (rounded head with a square neck), and socket head cap screws (Allen drive). There are also shoulder bolts (with an unthreaded shoulder) and eye bolts for lifting applications. Some bolts are fully threaded, while others are partially threaded; head shapes and drive types vary to suit different tools and environments.

Materials and finishes vary for strength and corrosion resistance. Typical materials are carbon steel, alloy steel, and stainless steel. Finishes include zinc plating, hot-dip galvanizing, black oxide, and nickel or other coatings to improve wear and resistance in harsh environments. Bolts are specified by size, thread pitch, length, and strength class.

Standards and sizing in Europe and many other regions rely on ISO metric threads (designated by the prefix M, such as M6, M12). Strength is indicated by property classes (for example, 8.8 or 10.9 in metric bolts). DIN and ISO standards define specific dimensions and tolerances for various bolt types, heads, and drives. Installation typically requires compatible nuts or tapped holes, correct lubrication, and appropriate torque to achieve the desired preload.

Boutschroeven are widely used in automotive, machinery, construction, and consumer products. They are chosen for their ease of assembly, removability, and high clamping force, provided that correct size, material, and fastening method are used.