Security Fastener
Our Thoughts
Good For
Not Good For
Driver Availability
Maximum Torque (MFG Claim)
Minimum Quantity
Average Break-In Time
Cost Per Fastener
Samples Available
Keyway Type
Tool Control
Head Style Options
Material Options
Reusability
Tamper Resistance
Tool Compatibility
Installation Method
Visual Deterrence Level
Removal Risk if Tool Leaks
Lead Time to Purchase
Where to Buy
Avsafe by Loss Prevention Fasteners
Avsafe® fasteners feature a low-profile, oval head designed to blend in and discourage tampering. Their lack of key-way eliminates common tool engagement points, making them ideal for hygienic or static-sensitive environments. While removal tools are restricted, the absence of user-specific keyways makes them unsuitable for high-security or high-value applications. Avsafe is best where subtle security and cleanliness matter more than physical resistance.
Avsafe
- Medical & Food Equipment
- Electronics & Static-Sensitive Installations
- Discreet or Aesthetic Applications
Avsafe
- High-Security Installations
- Unique Keyway Requirements
- Frequent Access
Avsafe
Restricted: Proprietary AVSafe bits, controlled distribution.
Avsafe
Not specified; high torque for medical gas applications.
Avsafe
Not specified; likely moderate (e.g., 100 pieces).
Avsafe
High: Proprietary design resists standard tools.
Avsafe
Not specified.
Avsafe
Not specified; likely available for bulk orders.
Avsafe
Proprietary keyway for medical gas security.
Avsafe
Controlled: Bits restricted, but control details unclear.
Avsafe
Oval
Avsafe
Stainless steel, corrosion-resistant alloys.
Avsafe
Reusable with AVSafe bit.
Avsafe
High: Proprietary keyway enhances security.
Avsafe
Requires AVSafe bit; incompatible with standard bits.
Avsafe
Manual or power-driven with AVSafe bit.
Avsafe
Moderate: Proprietary design signals security.
Avsafe
Moderate: Controlled bits reduce risk, but not bespoke.
Avsafe
Not specified; likely 1–4 weeks.
Avsafe
Kinmar Permanent by Hafren Security Fasteners
The Kinmar Permanent screw is a true one-way fastener designed for permanent installations where no future access is needed. Its unique shape makes unauthorized removal extremely difficult without specialized tooling or destruction. However, its broad, flat top offers limited resistance to physical attacks like grinding or gripping tools. The overall security relies more on deterrence than invulnerability.
Kinmar Permanent
- Permanent Fixtures
- Low-Maintenance Installations
- Visual Deterrence
Kinmar Permanent
- Applications Requiring Maintenance
- High-Tool Exposure Environments
- Resistance to Physical Destruction
Kinmar Permanent
None: One-way design, no driver for removal.
Kinmar Permanent
Not specified; high torque before shearing.
Kinmar Permanent
Not specified; likely moderate (e.g., 100 pieces).
Kinmar Permanent
Extremely high: Permanent, resists all removal attempts.
Kinmar Permanent
$1.62 - $5.35
Kinmar Permanent
Not specified; likely available for bulk orders.
Kinmar Permanent
One-way keyway, shears after installation.
Kinmar Permanent
None: Permanent design, no removal tools.
Kinmar Permanent
Button.
Kinmar Permanent
Steel, stainless steel; A2, A4 options.
Kinmar Permanent
Non-reusable; permanent installation.
Kinmar Permanent
Extremely high: One-way design prevents removal.
Kinmar Permanent
No tools for removal; one-way design.
Kinmar Permanent
Manual or power-driven; shears after installation.
Kinmar Permanent
High: One-way design signals permanence.
Kinmar Permanent
None: No removal tools exist.
Kinmar Permanent
Not specified; likely 1–4 weeks.
Kinmar Permanent
