The factory head is the original, manufactured head of a rivet, located opposite the shank end that will be deformed during installation. It provides the initial clamping surface and structural bearing area on the accessible side of the joint. Inspectors check the factory head for proper seating against the material surface.
Heard on the job
Keep the bucking bar steady so you don't mar the factory head on the outside of the skin.
Also heard as
- Manufactured head