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
Lock-Out by Tanner
Lock-Out® screws offer a significant step up from standard tamper-resistant fasteners, featuring a patented oval center pin drive and high torque resistance. The smooth, button-head profile is also a good deterrent against gripping tools like locking pliers. However, the limited number of unique drive patterns may reduce their effectiveness in high-risk applications or against targeted threats.
Lock-Out
- Shared or Commercial Use
- Moderate Tamper Resistance
Lock-Out
- High-Security Applications Demanding Unique Keyways
- Installations Prone to Physical Tampering
- DIY Projects or Immediate Availability Needs
Lock-Out
Custom One of a Kind Drives Available
Lock-Out
Not specified; likely moderate, similar to standard Torx-Pin or Hex-Pin.
Lock-Out
Not specified; likely low (e.g., 100 pieces) for stock items.
Lock-Out
Not specified; likely high due to proprietary keyway.
Lock-Out
Not specified.
Lock-Out
Not specified; likely available for bulk orders.
Lock-Out
Unique oval shape with fins and a center pin.
Lock-Out
Controlled: limited the availability to only registered & licensed users.
Lock-Out
Socket, Flat, Button
Lock-Out
Stainless Steel
Lock-Out
Reusable with matching bit; depends on drive type.
Lock-Out
High: Complex keyway resists standard tools, but less data on advanced attacks.
Lock-Out
Requires proprietary driver; incompatible with standard tools.
Lock-Out
Manual or power-driven with proprietary driver.
Lock-Out
High: Unique design signals advanced security.
Lock-Out
Low: Controlled bit distribution reduces risk.
Lock-Out
Not specified; likely stock items ship quickly.
Lock-Out
Tri-Groove
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.
Tri-Groove
Widely available; sold in stores and online.
Tri-Groove
Moderate; varies by size and material.
Tri-Groove
Low: Often available in small packs.
Tri-Groove
Low: Easily removed in minutes.
Tri-Groove
Low: Varies by supplier, size, and material.
Tri-Groove
Likely available from distributors.
Tri-Groove
Standard, not proprietary.
Tri-Groove
N/A: Bits widely available to public.
Tri-Groove
Button, flat, pan, socket; varies by supplier.
Tri-Groove
Steel, stainless steel (e.g., 304, 316), sometimes brass or zinc-plated—depends on supplier.
Tri-Groove
Reusable with matching bit; integrity depends on torque and material.
Tri-Groove
Low: Easily defeated with standard bits or modified tools.
Tri-Groove
Compatible with standard bits; widely available tools.
Tri-Groove
Manual or power-driven with bit; standard installation process.
Tri-Groove
Low: Recognizable shape signals basic security, not highly deterrent.
Tri-Groove
N/A: Tool/Bit is widely available.
Tri-Groove
N/A: Commonly stocked item.
Tri-Groove
