A headed externally threaded fastener whose threaded portion is of one nominal diameter, with a square neck directly beneath the head.
NSN 5905-01-391-7806
NSN 5965-01-602-7907
NSN 5910-00-264-7306
NSN 4140-01-396-4025
NSN 6685-01-531-0082
NSN 5930-01-577-6500
NSN 6150-01-395-5922
NSN 6685-01-594-0453
NSN 6145-01-061-2033
NSN 5990-01-476-9956
NSN 5965-01-090-6245
NSN 7035-01-391-7470