Made of high quality, temper hardened steel the Ultimate 420 has a slightly narrower inner width and lock body than the beefier Super Ultimate. The 13mm shackle double bolts into the lock body for robust protection against cutting and torsion attacks.

• 13mm hardened steel round shackle
• Pass through, double bolting steel shackle provides anti-twist protection
• Shackle, lock body and supporting elements made of special temper hardened steel
• ABUS Premium Cylinder offers great protection against picking
• Two keys supplied with the lock
• Security Rating: 12 of 15