AS1229A INSERT, SCREW THREAD, HELICAL COIL, STUD LOCKING, PERFORMANCE STANDARD FOR

This standard covers helical coil stud locking screw thread inserts made from formed wire in which the inner surface of the coil, after assembly provides threads of standard Unified 60° form as specified on the assembly drawing. This standard also covers the performance requirements of the locking feature of the insert which will retain Unified (UN) or MIL-S-8879 (UNJ) external threaded parts.