US security screws manufacturer 100% MADE IN THE USA

Call us: 480-503-3801

Exclusive to Bryce Customers

penta plus theft proof security bolts fasteners

Bryce Exclusive



High-Security Penta-Plus™ has proven itself Tamper-Proof for 20 years. Most sizes are stocked.

We manufacture our Penta-Plus™ drive in screws, bolts, and nuts. Penta-Plus™ has U.S. and worldwide patents. It's pentagon design is configured to keep Torx-Pin, Hex-Pin and all other tamper-resistant bits out. Standard tamper-resistant screws have bits sold on the open market where they're available to anyone. Only the matching Penta-Plus™ bit tip can fasten and unfasten a Penta-Plus™ screw. Penta-Plus™ tamperproof screws and bolts are only available to Bryce Fastener customers and bits are controlled through our customer database. 

Without failure, our High-Security Penta-Plus™ has proven itself tamper-proof and vandal-proof in the most extreme situations; securing tablets and computers in open kiosks, protecting valuable property at universities, and in critical city and government infrastructure applications. Next to our most secure custom fastener, Key-Rex®, Penta-Plus™ is your best tamper-proof option on the market. We give you the option to add our Raptor™ Security Head to your order. The Raptor™ Head eliminates the need for washers and significantly increases the torque ability and gripping power of Penta-Plus™. 

Options & Upgrades

Thread Type

Thread Type

Self-tapping, concrete, machine screws, set screws, and more.

With multiple threading machines we can run the most common machine screw threads to the most difficult acme and coil bolt threads.

Fastener Size

Fastener Size

From micro-screws to large bolts, our fasteners come in all sizes.

We have numerous cold heading machines which allow us to manufacture screws from large 5/8-11 down to micro mini 000-120 and all metric also.



20% Tougher to remove than lock washers.

Add the Raptor claw feature to the bottom head of the Key-Rex or Penta-Plus for unbelievable clamp loads and extreme security.

Stops Theft.

The applications are unlimited

  • Retail electronics
  • University electronics
  • Manufacturing
  • Public utilities
  • Prisons, jails, security facilities
  • Bank credit card, ATM
  • Gaming industry
  • Solar panels
  • House arrest electronics
  • Nuclear plants
  • Military
  • Museums
  • And many more

Available in a stainless or alloy steel in self-tapping, machine, metric, micro, and more.
Button head or flat head in a wide variety of sizes.

Get a FREE Penta-Plus® Quote

Each customer has different needs. Let us help you get protected.

Click for more info about Penta-Plus® Security Screws.

1230 N. Mondel Dr. Gilbert, Arizona 85233 Tel: 480-503-3801 Fax: 480-503-3834 Email: Facebook

Bryce Fastener is the world leader in high security locking bolts and fasteners, security screws, tamper proof and tamper-resistant screws.

KEY-REX™, Keyed-Lok®, Penta-Plus™, Hex-Pin™, and Tam-6lobe™ are registered trademarks of Bryce Fastener Mfg.
TORX® is a registered trademark of Acument Intellectual Properties, LLC
Copyright Bryce Fastener Mfg., Inc., 2020. All Rights Reserved. Prices Subject to Change Without Notice. Zero Theft is not Guaranteed.