US security screws manufacturer 100% MADE IN THE USA

Call us: 480-503-3801

Fast, High-torque, Stick-Fit

stykfit7 tamper-proof screw

Bryce Exclusive



We’ve combined security and productivity. Finally... a solution that really works!

Protected by worldwide patents, STYKFIT®7 incorporates the best features of other drive systems to create a superior driving fastener. It indexes faster than Phillips®, torques higher than Torx®, sticks to the bit better than Robertson® (square drive); creating the highest performing fastener ever made.

Tolerances between the screwdriver and the screw are reduced to less than .0005. This is in comparison to other fasteners that can have up to .010. This creates a near weld-like bond which allows one-handed installation, and the ability to pick up and place the assembly piece in position. Ease of use and improved installation times are the result. If you're looking to make gains in productivity and efficiency, this is it. 

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.

Stykfit®7 Features

  • Secure/Tamper-proof - Unique 7-fin profile and center rejection pin
  • Holds fasteners tightly enough to bear weight - Driver bit holds more than the fastener alone. Tapered driver bit indexes tightly enabling screw to bear the weight of the piece being assembled.
  • Fast assembly time - Fast indexing, even while driver bit is rotating; no fumbling, dropping, or re-attaching
  • Non-magnetic - Hold fastener without need for magnetic driver bits or sliding sleeves (works with stainless and coated fasteners)
  • Extreme torque threshold - Higher torque allows for more security
  • Brykote™ Protective Coating - Up to 700 hours of extra corrosion protection. Available in a variety of colors
  • Made in USA - Engineered and crafted 100% in the USA
  • Guaranteed - More secure and faster assembly guaranteed - wait until you see how efficient you can be

Torque Like No Other

Torque is another advantage. At present the highest torquing systems use lobe designs with multiple straight walls. Unfortunately, these installation bits have tolerances that intersect approximately 15% of the side walls. This creates stress “cam-out” points and reduces the torque that can be applied. STYKFIT®7 drive systems allow for over 98% contact of bit-to-screw. This tight grip spreads the load over the entire driver, eliminating fracture points and providing higher torque.

Quick Indexing

Indexing features make this fastener usable by robots. STYKFIT®7 employs a rounded counterbore system in the head of the screw which guides a spinning driver bit into the socket. This oversized counterbore means the bit can miss the socket by over .020 and still be directed into the fastener keyway.

All told, these features combine to create the most advanced, user-friendly fastener ever designed. Screws are often incorrectly purchased based on their price. The real cost of the fastener is in installation. The auto industry once calculated installation costs (on an assembly line) were over $0.25 each. This likely has ballooned to over $1.00 each. A poorly placed or torqued fastener is one of the leading reasons for customer complaints. Therefore, technologies to lessen those problems are the most cost effective solutions. STYKFIT®7 fasteners are invented, designed, and manufactured in the United States.

Click for more info about STYKFIT®7 Theft-Proof 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., 2019. All Rights Reserved. Prices Subject to Change Without Notice. Zero Theft is not Guaranteed.