| Pick Resistance | 4-pin cylinder | | Dual ball bearing locking mechanism, Four-pin cylinder | 4-pin cylinder, Ball-bearing locking mechanism | | | | | 4-pin cylinder, Dual ball bearing locking | 4-pin cylinder | |
| Shackle Material | Boron alloy, Steel | | Boron alloy | Hardened Steel | | Boron alloy, Laminated steel, Stainless steel | Stahl | Boron-carbide | Boron alloy, Stainless steel, Steel | Alloy Steel | Hardened steel |
| High Security Features | 4-pin cylinder, Dual ball bearing locking, Tough-Cut octagonal boron-carbide shackle | | Dual ball bearing locking mechanism provides maximum pick and pry resistance, Four-pin cylinder, Tough-Cut octagonal boron-carbide shackle | 4-Pin Cylinder, Cut Resistance, Dual Locking Levers, Pick Resistance | Anti-Drill, Cut Resistant | Cylinder Pins: 4-pin, Pick Resistance, Pry Resistance, Tough-Cut octagonal boron-carbide shackle | | Dual ball bearing locking, 4-pin cylinder | Cylinder Pins: 4-pin, Other security mechanisms: Dual ball bearing locking, Tough-Cut octagonal boron-carbide shackle, Pulling Resistance: none | | |
| Indoor Use Suitability | Both | | Both | Both | | Both | Indoor | Yes with details: Suitable for securing storage units, garages, etc. | Both | Indoor | Yes, for indoor and outdoor use |
| Locking Mechanism Type | 4-pin cylinder, Dual ball bearing locking | Combination | Dual ball bearing locking, Four-pin cylinder | Ball-bearing locking, Pin tumbler | | 4-pin cylinder, Dual ball bearing locking | | Pin tumbler | 4-pin cylinder, Dual ball bearing locking | 4-pin cylinder, Double Locking | Pin tumbler cylinder |