Specifies dimensions for form, width and diameter of undercuts and runouts for ISO metric external and internal threads for use in general engineering applications. Threads may be cut or rolled without the die or tap fouling the component.
BS 1936-2:1991 history
0000 BS 1936-2:1991(1999)
1991BS 1936-2:1991 Undercuts and runouts for screw threads. Specification for ISO metric screw threads