Feature-Security Screws and Anti-Tamper Fasteners 1.High secrity permanent bolt.
2. No specialist tool required - installed with a standard socket or spanner.
3.Hexagonal part shears off when bolt is tightened, leaving a tamper proof head with no recess.
4:Stocked in zinc plated ( M12&M14)
Application: prison cells,railings,burial vaults,machinery, utility poles,benches etc.
Note: other size can be custom-made according to your requirement.