Three undercuts
A headed, cylindrically-shaped metal item having a shank and/or shoulder offset from the geometric center of the head. If shouldered, a portion of the shank and/or shoulder may be concentric with the head.
NSN 5930-01-064-5767
NSN 5835-00-491-3834
NSN 5950-00-107-7321
NSN 5996-01-541-6689
NSN 6620-01-244-0260
NSN 2925-00-833-9466
NSN 5950-01-359-2601
NSN 6105-01-168-6320
NSN 6685-01-407-1171
NSN 6110-01-593-8570
NSN 6620-01-067-8336
NSN 5985-01-326-8959