AIA NAS 1255-1977 (Inactive)Bolt, 100 Degree Flush Head Hi-Torque Recess, .0312 Oversize Short Thread, Alloy Steel, 160,000 psi (Superseded March 1977 Use NAS 1790 and NAS 380) (Rev. 6)
1977AIA NAS 1255-1977 (Inactive)Bolt, 100 Degree Flush Head Hi-Torque Recess, .0312 Oversize Short Thread, Alloy Steel, 160,000 psi (Superseded March 1977 Use NAS 1790 and NAS 380) (Rev. 6)