A headed externally threaded fastener whose threaded portion is of one nominal diameter with an elliptical neck, directly beneath the head.
NSN 5985-01-246-3626
NSN 5960-00-864-2883
NSN 5930-01-465-7069
NSN 6620-01-246-7133
NSN 5996-01-197-5010
NSN 6610-01-446-5975
NSN 6610-01-372-9248
NSN 6110-01-334-9536
NSN 2925-00-010-9609
NSN 6610-01-108-4025
NSN 5960-01-142-1995
NSN 5998-00-937-4309