A Bryce fastener expert is ready to recommend the perfect protection to fit your needs and budget.
See our Lag Thread Security Bolts brochure for more technical information.
RAPTOR SECURITY HEAD INCLUDED
Standard Security and High Security Lag Bolts & Tamperproof Lag Screws
If you need a powerful driving security screw with extra strong hold, our High-Security Key-Rex® or STYKFIT®7 Lag threaded tamperproof security screws will exceed your expectations. Lag screws and bolts are rarely made into security screws because most security drives are not powerful enough to torque the screw without failing. Bryce Fastener’s Key-Rex® and STYKFIT®7 security drives far exceed the required torque. This is important because security lag screws and lag bolts are used in high torque applications such as pressure treated wood, concrete lag inserts, and pre-drilled plastic. Bryce Fastener’s tamper proof security lag bolts have been specified for wood signs in many National Parks. Our Lags are manufactured with an oversized Raptor™ Button Head. This helps them hold better in wood than standard Hex or Penta Head security lag screws.
Standard-Security level Penta Head lag bolts are available by special order.
Made in Stainless Steel
Key-Rex can be made for virtually any fastener type, any size, any metal, any coating, and more. From galvanized metric bolts for harsh coastal outdoor environments to heat-treated, micro screws for data center security.
Tell us about your project and a Bryce fastener expert will recommend the perfect protection to fit your needs and budget.
Custom made for each customer. The most secure, tamper-proof screw and bolt on the market. Patented worldwide. Designed to simply not be removed by anyone but the owner — ever. Not available in any store.
KEY-REX® Nut also available.See More
In-stock. Controlled inventory. Pentagon design is configured to keep out Torx-Pin, Hex-Pin and all other tamper-resistant bits. Only available to Bryce Fastener™ customers and bits are controlled through our customer database. Next to KEY-REX®, PENTA-PLUS™ is your best tamper-proof option on the market.
PENTA-NUT™ also available.See More
Better than Torx®. Patented design provides tight tolerance between bit and screw for a “stick-fit”. Screws don’t fall off the bit, even when bearing weight – perfect for assembly applications.
Fast indexing, ease of use and improved installation times are the result. Looking to make gains in productivity and efficiency with a security screw? This is it.See More