Manufacturer of the world's most secure fasteners

key-rex set screw security screws


Key-Rex® Set Screw

World's Most Secure Fastener Now in a set screw

Set Securely

Key-Rex® is the world's most advanced, most secure, tamper-proof screw technology on the market. It's not available in any stores. And now you can have the most secure set screw in the world.

The market has caught up to common tamper-proof screws. New shapes are continually coming to market only to be followed by easy-to-find drivers that match them.

Don't take chances, get your own set screw with your Key-Rex® private keyway profile. Only you will have the driver bit to match. It doesn't get more secure than that.

Available in sizes 2/56-1/2 (diameter cannot exceed the length).

Stainless Steel, Alloy, and Coated.

Configure Your Perfect Fastener

Fastener security — for everything possible.

Bryce Security Fasteners can be made in 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.


Whatever you’re working on, Bryce has you covered.

Tell us about your project and an expert will recommend the perfect protection to fit your needs and budget.

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Choose the right screw for your needs.

Compare our other exclusive security fasteners. Never sold in stores.