Bhcs screw m20x2.5x180 cl8.8zn
An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).
NSN 6105-01-166-8847
NSN 5915-01-429-6643
NSN 5960-01-503-0362
NSN 5835-01-162-5224
NSN 4140-01-299-0655
NSN 6145-01-063-3846
NSN 2925-00-549-6759
NSN 6220-00-186-8565
NSN 5855-01-085-5354
NSN 5855-01-145-8973
NSN 5990-01-432-4984
NSN 5990-01-529-7307