Helical shape
Dimensions
Heat-resistant materials
Threads
Corrosion-resistant steels
Aircraft components
Roughness (surface)
Marking
Thread inserts
Threaded fasteners
Diameter
Designations
Steels
Fasteners
Link: BS EN 2944:2018 Aerospace series. Inserts, screw thread, helical coil, self-locking, in corrosion resisting steel FE-PA3004
Source: BSI Standards
