M4 screw head for manually wrapping without a screwdriver or wrench. Useful wherever it is often necessary to to manually tighten.

Using the following options:

Spring_Outer_Diameter = 9.5
Washer_Tolerance = 0.25
Washer_Thickness = 0.8
Bolt_Diameter = 3.25
Knob_Height = 8
Across_Flats = 7
Bottom_Thickness = 2
Nut_Thickness = 2.5
Number_of_Slots = 6
Resolution = 0.5
knurl_Diameter = 16