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
Hex-Pin
This fastener is widely available and lacks meaningful tool control or tamper resistance. While often marketed as a "security screw," it does not meet our standards for the security classification. It may deter casual tampering but offers very little protection against intentional removal.
Hex-Pin
Widely available; sold in stores and online.
Hex-Pin
~100 in/lbs for 1/4-20x1
Hex-Pin
Low: Often available in small packs.
Hex-Pin
Low: Easily removed in minutes.
Hex-Pin
Low: Varies by supplier, size, and material.
Hex-Pin
Likely available from distributors.
Hex-Pin
Standard, not proprietary.
Hex-Pin
N/A: Bits widely available to public.
Hex-Pin
Button, flat, pan, socket; varies by supplier.
Hex-Pin
Steel, stainless steel (e.g., 304, 316), sometimes brass or zinc-plated—depends on supplier.
Hex-Pin
Reusable with matching bit; integrity depends on torque and material.
Hex-Pin
Low: Easily defeated with standard bits or modified tools.
Hex-Pin
Compatible with standard bits; widely available tools.
Hex-Pin
Manual or power-driven with bit; standard installation process.
Hex-Pin
Low: Recognizable shape signals basic security, not highly deterrent.
Hex-Pin
N/A: Tool/Bit is widely available.
Hex-Pin
N/A: Commonly stocked item.
Hex-Pin
Kinmar Removable by Hafren Security Fasteners
The Kinmar® Removable fastener offers a flexible tamper-resistant option for low-risk applications, but its design leaves critical vulnerabilities. The flat top makes it easier to grip with locking pliers or attack with rotary tools, and although the manufacturer claims the driver socket is restricted, it can be found online for around $170—undermining the intended access control. Its use is best limited to low-value or controlled environments where convenience outweighs high security.
Kinmar Removable
- Low-Value Theft Prevention
- Controlled Access Environments
Kinmar Removable
- High-Value Theft Protection
- High-Frequency Removal
- Large-Scale Projects
- Applications Requiring Sizes Outside M6–M12
Kinmar Removable
Restricted: Specialist tooling, available only from Hafren approved distributors.
Kinmar Removable
Not specified; high torque for removable security.
Kinmar Removable
Not specified; likely moderate (e.g., 100 pieces).
Kinmar Removable
High: Requires specialist tooling, resists standard bits.
Kinmar Removable
$2.04 - $6.95
Kinmar Removable
Not specified; likely available for bulk orders.
Kinmar Removable
Patented two-indent keyway, resists standard bits.
Kinmar Removable
Controlled: Specialist tooling restricted to approved distributors.
Kinmar Removable
Button, countersunk.
Kinmar Removable
Steel, stainless steel; A2, A4 options.
Kinmar Removable
Reusable with Kinmar® tooling; designed for secure removal.
Kinmar Removable
High: Patented keyway enhances tamper resistance.
Kinmar Removable
Requires Kinmar® specialist tooling; incompatible with standard bits.
Kinmar Removable
Manual or power-driven with Kinmar® tooling.
Kinmar Removable
Moderate: Two-indent design signals security but less unique.
Kinmar Removable
Moderate: Restricted tooling reduces risk, but not bespoke.
Kinmar Removable
Not specified; likely 1–4 weeks. Contact Hafren.
Kinmar Removable
