This design standard defines the dimensional requirements for internal six lobe drive-internal recess head fasteners in 100° shear and tension flush heads and pan heads.
AIA NAS1800:2021
Original price was: $55.00.$27.00Current price is: $27.00.
RECESS, SIX LOBE DRIVE, INTERNAL, DIMENSIONS FOR RECESS AND GAGES
Aerospace Industries Association , 06/30/2021
Pages: 4
