60mm lock bolt with 41mm under head as fitted to the following Bulldog products:

Details

Highly developed 10 pin radial tumbler lock insert.
Case hardened to 60 Rockwell hardness (746 VPN)
Crop, drill and saw resistant.
Anti drill centre pin on radial pin tumbler lock.
Drill resistant lock cover to prevent hollow core drilling of lock.
10mm diameter steel ball bearings operated by internal cam mechanism.
Lock face design is resistant to attack by slide hammer (dent puller) devices.
Bulldog Super Lock Bolt has been used in many applications of security products that have passed independent attack test including SCM Road Vehicle Research Institute, and Sold Secure.
Resistant to attack by punches or drifts due to internal lock chamber design.
Keys can only be removed in locked position, no possibility of accidental locking.
2 keys supplied with lock as standard. Multiple locks can be supplied with same key for fleet or multi user applications.