Historical
DIN 571:2010
Hexagon head wood screws (Foreign Standard)
This document contains dimensional and technical requirements of hexagon head wood screws and specifies their designation.*This standard specifies the characteristics of hexagon head wood screws for thread diameters between 4 mm to 20 mm which are used outside areas requiring approval, such as timber structures for load-bearing purposes.
Deutsches Institut für Normung [din]