DIN 931 – Hexagon head bolts with shank

Current norm: DIN EN ISO 4014
Equivalent norms: ISO 4014; CSN 021101; PN 82101; UNI 5737; EU 24014;

Partially threaded screws come with precise threaded and unthreaded portions, allowing you to place only the stronger unthreaded portion (grip) in joints subjected to sideways forces.