CEN Graded Anvil Padlock.
The Squire Bullit padlock is purpose designed for roller shutter doors and containers. It has a 10mm diameter hardened alloy steel shackle which rotates for extra anti saw protection. CEN Graded 4 and conforms to BS EN12320 standards.
Made from solid steel.

Cen Grading explained
GRADE 6 - Extra High Security
GRADE 5 - High Security
GRADE 4 - Security
GRADE 3 - Standard
GRADE 2 & 1 - General