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
PENTA-PLUS by Bryce Fastener
Penta-Plus™ screws offer a robust tamper-resistant solution with a proprietary pentagon drive designed to resist standard tamper-resistant bits. The low-profile button head design deters gripping tools like locking pliers, and the optional Raptor™ Claw feature enhances torque resistance by embedding into the substrate. While the drive pattern is proprietary and bits are controlled by Bryce Fastener, the lack of unique keyways per customer may limit their suitability for applications requiring the highest level of security.
PENTA-PLUS
- Commercial Installations
- Municipal Infrastructure
- Situations Requiring Enhanced Tamper Resistance
PENTA-PLUS
- High-Security Applications Requiring Unique Keyways
- Installations Demanding Maximum Tamper-Proofing
- DIY Projects or Immediate Availability Needs
PENTA-PLUS
Restricted: Proprietary Penta-Plus™ bits, only available to Bryce customers, controlled via database.
PENTA-PLUS
132 in/lbs for ¼-20x1. Raptor™ head adds 20% more torque.
PENTA-PLUS
2,500 piece minimum, smaller minimum for large bolts.
PENTA-PLUS
Very high: Resists Torx-Pin, Hex-Pin; requires proprietary bit.
PENTA-PLUS
$0.50 - $15.00. Varies by size, quantity, and material.
PENTA-PLUS
Not stated; likely available for custom orders.
PENTA-PLUS
Pentagon-based, resists standard tamper-proof bits.
PENTA-PLUS
Strict: Bits exclusive to Bryce customers, controlled distribution.
PENTA-PLUS
Button, flat, socket, set screws; customizable with Raptor™ head.
PENTA-PLUS
302 and 316 stainless steel. 8740 Alloy, heat-treated alloys and custom coatings.
PENTA-PLUS
Reusable with Penta-Plus™ bit; high torque maintains integrity.
PENTA-PLUS
Very high: Pentagon design repels standard tools.
PENTA-PLUS
Requires Penta-Plus™ bit; incompatible with standard bits.
PENTA-PLUS
Power-driven or manual with Penta-Plus™ bit.
PENTA-PLUS
High: Pentagon design signals advanced security.
PENTA-PLUS
Low: Controlled bit distribution reduces risk.
PENTA-PLUS
4-6 weeks, stock items faster.
PENTA-PLUS
Shear Bolts by Hafren Security Fasteners
The Shear Bolt uses a breakaway hex head that snaps off at a calibrated torque, leaving behind a smooth, ungrippable surface. It's a simple and effective design for creating permanent installations. Once installed, removal typically requires drilling or destructive force. However, the initial install is limited by access to torque tools, and over-tightening or under-tightening can reduce performance.
Shear Bolts
- Single-Use Security
- Utility Fixtures and Covers
- Clean, Tool-Less Finish
Shear Bolts
- Applications Requiring Reuse
- Precise Torque-Sensitive Installs
Shear Bolts
None: One-way design, shears after installation.
Shear Bolts
14-25nm
Shear Bolts
Not specified; likely moderate (e.g., 100 pieces).
Shear Bolts
Extremely high: Shears, resists all removal attempts.
Shear Bolts
$2.67 - $32.91
Shear Bolts
Not specified; likely available for bulk orders.
Shear Bolts
One-way shear design.
Shear Bolts
None: Shears, no removal tools.
Shear Bolts
Cylindrical (bolt head).
Shear Bolts
Steel, stainless steel; A2, A4 options.
Shear Bolts
Non-reusable; permanent installation.
Shear Bolts
Extremely high: Shear design prevents removal.
Shear Bolts
No tools for removal; shear design.
Shear Bolts
Manual or power-driven; shears after installation.
Shear Bolts
High: Shear design signals permanence.
Shear Bolts
None: No removal tools exist.
Shear Bolts
Not specified; likely 1–4 weeks.
Shear Bolts
