High-Security Padlocks Built to Protect.
From hidden-shackle PUCK padlocks to stainless steel, step-back and interchangeable-cylinder designs, Cobra Lock provides durable padlock options for commercial, industrial and demanding outdoor applications.
Choose the Right Padlock for the Application
Cobra offers multiple PUCK and specialty padlock configurations designed around different environments, security requirements and cylinder options.
Cobra C3 Padlock
The Cobra Universal PUCK paired with the C3 high-security lock cylinder combines a hidden-shackle padlock design with enhanced mechanical key control.
- Hidden-shackle PUCK design
- Cobra C3 high-security cylinder
- Available in multiple body materials
- Patented locking solution
Cobra C7 Padlock
A high-security PUCK configuration using the Cobra C7 cylinder with a hidden-shackle body designed to reduce exposure to cutting and tampering.
- Cobra C7 high-security cylinder
- Hidden-shackle design
- Pick and drill resistance features
- Multiple body material options
Step-Back Aluminum PUCK
A recessed PUCK design created for applications where mounting clearance, alignment and lock positioning require a step-back body.
- Step-back body configuration
- Aluminum construction
- Hidden-shackle protection
- Compatible high-security cylinder options
Stainless Steel PUCK
A 303 stainless steel Universal PUCK designed for applications where increased corrosion resistance and outdoor performance are priorities.
- 303 stainless steel construction
- Strong corrosion resistance
- High-security cylinder options
- Designed for outdoor applications
Universal PUCK Padlock
A patented PUCK padlock platform designed to accept standard vending-style lock cylinders, allowing the security cylinder to be selected for the application.
- Solid steel construction
- Shackleless design
- Replaceable lock cylinder
- Multiple compatible cylinder systems
Cobra FLEX Padlock
A patented padlock design built around a standard 7/8-inch cam-lock cylinder, allowing the cylinder and security level to be changed by the user.
- Solid steel construction
- Hardened steel shackle
- User-changeable shackle
- Accepts standard 7/8-inch cam locks
Protect the Lock. Protect the Asset.
Cobra PUCK padlocks move the locking point inside the padlock body rather than leaving a traditional shackle exposed. The result is a compact locking platform designed for applications where physical protection and key control matter.
Hidden Shackle
The shackle is enclosed within the padlock design, reducing direct exposure to cutting.
Cylinder Choice
Select the lock cylinder and key-control level that best fits the application.
Material Options
Choose from aluminum, steel and stainless steel configurations for different environments.
Serviceability
Select Cobra designs allow cylinders or components to be changed instead of replacing the entire padlock.
Choose Your Security Cylinder
Pair the protection of a Cobra PUCK padlock with a Cobra high-security cylinder designed around stronger key control and physical-security features.
Cobra C3
Designed for applications requiring a higher level of mechanical key control and resistance to physical attack.
- Controlled key blanks
- Anti-picking features
- Anti-drill protection
- 250+ million possible key codes
Cobra C7
Combines Cobra's seven-sided lock design with enhanced key control and physical-security features.
- Seven-sided keyway design
- Controlled lock-code options
- Pick-resistance improvements
- Anti-drill feature
Different Environments Need Different Materials
Cobra PUCK padlocks are available in multiple body configurations so material and fit can be matched to the environment and application.
Aluminum
A lightweight, corrosion-resistant option suitable for many indoor and outdoor applications where a machined aluminum body is preferred.
Solid Steel
A strong mechanical padlock body for applications where rugged construction and physical protection are primary requirements.
Stainless Steel
303 stainless steel construction provides increased resistance to environmental exposure for demanding outdoor applications.
A PUCK Padlock Designed Around Fit
Some applications require the padlock to sit farther into a hasp or enclosure. The Cobra Step-Back PUCK uses a recessed body configuration to provide additional clearance while retaining hidden-shackle protection.
Its aluminum construction also makes it a practical option for equipment and enclosures exposed to demanding operating conditions.
Security for Demanding Assets
Cobra padlocks can be configured for a wide range of commercial and industrial locking applications.
Equipment
Protect machinery, equipment housings and access points.
Utility Enclosures
Secure cabinets and enclosures requiring durable exterior protection.
Vending & Payment
Add high-security locking to vending and cash-handling applications.
Gates & Hasps
Pair Cobra padlocks with compatible hasps and secured access points.
Not Sure Which Cobra Padlock You Need?
Tell us what you are securing, where the padlock will be used and the level of key control you need. The Cobra Lock team can help identify the right body, cylinder and configuration.




