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 6610-01-071-4097
NSN 6620-01-462-5196
NSN 5915-01-239-3048
NSN 5950-01-471-8138
NSN 6610-00-277-7206
NSN 7035-01-112-9375
NSN 6130-00-958-9796
NSN 6240-01-053-0666
NSN 5985-01-022-9708
NSN 5945-00-206-2774
NSN 4140-01-412-1566
NSN 5960-00-926-7238