The Excalibur Screw bolt is manufactured from boron steel, and are, as standard, case hardened and tempered to the Exacalibur specification; therefore a class of quality of grade 10.9 is a comparison based upon the core hardness figure achieved.
Feature:
Simple, fast installation
Immediate load capability
Exceptional strength
Permanent removable or tamper resistant
Cost effective
Vibration Increases Performance