The Steck STC21960 SPR Insert Tool is designed for installing self piercing rivets in automotive body panels. Part Number: STC21960. MPN: STC21960. Q: What is the STC21960 used for?. The Steck SPR Insert Tool can also be referred to as self piercing rivet tool, SPR installation tool, automotive rivet insert tool, body panel rivet tool, and collision repair fastening tool.
