Spherical head, double thread, concentric hole
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
NSN 6240-01-586-9718
NSN 7035-00-225-6499
NSN 6685-01-065-2177
NSN 6650-01-619-4030
NSN 6620-01-212-4298
NSN 6105-00-189-0515
NSN 6130-01-233-4557
NSN 5910-01-212-5903
NSN 4140-00-078-9357
NSN 5935-01-245-9685
NSN 5998-00-881-5226
NSN 6320-01-170-4068