AIA NAS 1507-1981 (Inactive)Bolt, 100 Degree Flush Head Hi-Torque Recess, Short Thread Alloy Steel, 160,000 psi; (Superseded March 1977; Use NAS 1790 and NAS 380) (Rev. 6)
1981AIA NAS 1507-1981 (Inactive)Bolt, 100 Degree Flush Head Hi-Torque Recess, Short Thread Alloy Steel, 160,000 psi; (Superseded March 1977; Use NAS 1790 and NAS 380) (Rev. 6)