ISO 6305-4
Railway components; technical delivery requirements; part 4: untreated steel nuts and bolts and high-strength nuts and bolts for fish-plates and fastenings
Gleisoberbauerzeugnisse; Technische Lieferbedingungen; Teil 4: Unbehandelte sowie hochfeste Stahlschrauben und Muttern für Laschen und Kleineisenzeug
Responsible national committee
NA 021-00-12 AA - Railway track products
Responsible international committee
ISO/TC 17/SC 15 - Railway rails, rails fasteners, wheels and wheelsets