Serrated flange head
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.
NSN 5990-00-318-3990
NSN 5930-01-437-6156
NSN 5985-01-429-0876
NSN 5930-00-428-7998
NSN 5999-01-463-8192
NSN 5855-01-222-1242
NSN 6240-01-398-6049
NSN 6220-01-276-2102
NSN 5910-01-553-8553
NSN 6645-00-321-6071
NSN 6135-01-130-3145
NSN 5950-01-443-0568