General purpose bolts and screws — Metric series — Radii under the head
This Standard specifies the sizes of the radii under the head and the transition diameters of metric series general purpose bolts and screws.
Check out other specifications
Slotted head machine screws for precision instruments
Steel hexagon head bolts for structural steel bolting, for supply with hexagon nuts
Tabular layouts of article characteristics for bolts, pins, rivets, and keys
Mechanische Verbindungselemente – Technische Lieferbedingungen – Festigkeitsklassen für Muttern (bisherige Klassen)
Scheibenräder für Kraftwagen und Anhängefahrzeuge – Teil 2: Befestigungselemente für Bolzenzentrierung
INSPECTION AND QUALITY ASSURANCE FOR SPECIAL PURPOSE FASTENERS
High strength hexagon fit bolts with large widths across flats for structural steel bolting