As unique as your fingerprint.
More secure than any tamper-proof screws on the market.
The Key-Rex® fastener can’t be removed without its perfectly matched driver bit.
Patented | Never in Stores
Exclusive-to-you design that’s engineered for zero-theft.
100% made-to-order, right here in Gilbert, Arizona.
The Key-Rex® fastener can’t be removed without its perfectly matched driver bit.
I never knew we could have security screws with a drive designed specifically for our company. Key-Rex saves us time, money, and headaches, no longer having to constantly replace stolen and damaged items. Thank you for helping me impress my boss!
Jim Haskins Product EngineerTransportation ManufacturerIf you've ever had a loss, you know.
Patented Drives Only Available from Bryce Fastener | Never Sold in Stores
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.
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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.
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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.
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A better “one-way.”
Strip-Lok™ acts like a One-Way, but can be power driven for max torque before intentionally stripping to make the perfect non-removable security screw.
See MorePatented Drives Only Available from Bryce Fastener | Never Sold in Stores
Custom made for each customer.
Key-Rex® nuts are the world's most secure, tamper-proof nuts on the market. Every set of Key-Rex® nuts are custom "keyed" for the client. Only the client has the sockets to fit their custom set which are designed to be nearly impossible to remove without the socket.
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In-stock. Controlled inventory.
Penta-Nut™ security nuts have the largest diameter compared to other available anti theft nuts and security nuts, and with the added Raptor™ Security Head, no washer is needed. These High-Security 316 stainless steel tamper proof nuts turn any bolt into a lock.
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Pipeline Protector & Security Cap
We designed the Key-Rex® Wellhead Nut with defense features other security nuts don’t have.
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All tamper-proof screws are not created equal. The problem with most other security screws is that they are not actually as secure as one might think.
The fact is, except for Bryce Fastener's, most so-called “tamper proof screws” are not at all what they claim. Any person can go into almost any hardware store and buy a special tool or driver to so called tamper proof screws that most people believe are secure, locking, and thief resistant. There are even commonly available types of driver bits to remove those so-called “one-way screws”. So what is your alternative for true peace of mind? Truly unique tamper proof screws made by Bryce Fastener.
Bryce is a U.S. custom screw manufacturer located in Gilbert, Arizona. The tinker resistant security screws, tamper-proof bolts, tamper-resistant screws, security nuts and other security fasteners Bryce manufactures are simply the finest in the world. Tamper resistant fasteners with revolutionary head designs are all we manufacture and our security bits are not available on the market.
Virtually every industry, from retail stores to governmental security has issues with theft, loss prevention and vandalism. Many of them, after suffering serious losses, put an end to their issues with Bryce Fastener’s tamper proof bolts, screws, and nuts. Bryce fasteners are perfect for a wide variety of security applications, from the internal workings of a medical device with our miniature fasteners, to a product display, all the way up to gas and oil pipelines with our Key Rex Structural Nut with security cap. We have even developed the absolute best concrete security screws on the planet. Best of all, if you don't see a style of security bolts, security nuts, screws, or fasteners on our site that fit your needs, we'll design one for you. After all, we are the manufacturer, and we have the finest designers of screws and fasteners in the industry.
Many electronics manufacturers and product engineers need efficient, cost-effective means to protect components from prying hands, tools and eyes. They find the Bryce Key Rex screws and nuts nearly 100% effective in their applications, down to the tiniest sizes of screws. This is essential in protecting themselves from liability. It’s also important when they need to keep proprietary information out of the hands of others. Traditional tamper resistant screws would not do the job, as their bits are available in stores, but our revolutionary designs and limited availability of our security bits, ensure the job is done right.
Retail organizations need simple, effective, affordable means to prevent loss from theft and wreckage of their products and premises. Bryce tamper proof screws and tinker resistant fasteners have prevented countless cases of loss at a wide range of stores around the world.
Universities everywhere protect costly classroom equipment with the world’s finest and most unique anti-theft screws, locking nuts and bolts made by Bryce. Time after time, we receive reports from schools when they discover all the screws removed from a securing device except the one or two security screws from Bryce. Those one or two screws were all that was needed to prevent costly items from being detached and carried away. We've also heard of cases where a few Bryce wood screws saved the day, such as when our screws were the only things that kept several wooden benches from ending up in the school pond.
Utility companies rely on Bryce tamper resistant screws and tamper proof fasteners to prevent theft of expensive equipment such as miles of copper wire. They also rely on large numbers of Penta Bolts, security bolts, and tamperproof screws from Bryce to effectively prevent manhole covers and other access points from being breached.
A Bryce Fastener screw should be your best first line of defense against loss, theft, unauthorized entry and destruction of property. Bryce manufactures some of the only truly tamper proof screws in the world. If Bryce doesn’t have what you’re looking for, or you have a question, give us a call. We custom design and manufacture screws and other tamper proof fasteners to fit almost any need.