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
KEY-REX by Bryce Fastener
The KEY-REX by Bryce Fastener stands out as the top choice among security fasteners, excelling across multiple evaluation factors. Offering top-tier tamper-proof security with a globally patented design concept that restricts removal to the owner alone. Unavailable in stores, its specialized approach shines.
KEY-REX
- High Value Applications
- High Risk/Liability Applications
- Isolated Installations (more time to circumvent)
KEY-REX
- DIY Projects
- If you need it today
- 3rd Party Installation
KEY-REX
Restricted: Custom driver bits, unique to each customer, not sold in stores. Controlled via serialized database.
KEY-REX
~136 in/lbs for 1/4-20x1 and ~140 in/lbs with Raptor Head.
KEY-REX
2,500 piece minimum, smaller minimum for large bolts.
KEY-REX
Extremely high: “Nearly impossible” without custom bit; rare breaches take significant time.
KEY-REX
$0.60 - $16.00. Varies by size, quantity, and material. Plus a one time licensing fee.
KEY-REX
Not stated; custom design implies possible samples.
KEY-REX
Custom-encrypted, 53 billion variations, unique per customer.
KEY-REX
Strict: Serialized bits, tracked, restricted to original purchaser. Verification for replacements.
KEY-REX
Button, flat, socket, customizable with Raptor™ head.
KEY-REX
302 and 316 stainless steel. 8740 Alloy, heat-treated alloys and custom coatings.
KEY-REX
Reusable with matching bit; high torque maintains integrity.
KEY-REX
Extremely high: Repels Vice-Grips, drills; sloped head, large rejection pins.
KEY-REX
Requires custom Key-Rex® bit; incompatible with standard bits (Torx, Hex).
KEY-REX
Power-driven or manual with custom bit.
KEY-REX
High: Low-profile, sloped heads signal difficulty; custom keyway exclusivity.
KEY-REX
Low: 53 billion keyway variations, strict bit control.
KEY-REX
4-6 weeks.
KEY-REX
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
