M4 X 40 S/C SOCKET HEAD COUNTERSUNK SCREW

A Self Colour Grade 10.9 Metric Coarse Socket Head Countersunk Screw with hexagon drive, manufactured to DIN 7991. Used in applications where the head is needed to be flush with the surface.

Diameter:  M4
Pitch:  0.70mm
Length:  40mm
Thread Length:  20mm
Plain Shank Length:  17.52mm
Head Drive (A/F):  2.50mm
Head Thickness:  2.48mm
Head Diameter:  8.00mm

The DIN 7991 specification for this item states partial thread, however it may sometimes supplied fully threaded.