Custom made for each customer.

KEY-REX®

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.

In-stock. Controlled inventory.

PENTA-PLUS™

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.

Better than Torx®.

Stykfit®7

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.

Custom made for each customer.

KEY-REX® Nut

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.

In-stock. Controlled inventory.

PENTA-NUT™

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.

Pipeline Protector & Security Cap

KEY-REX® Wellhead Nut

We designed the Key-Rex® Wellhead Nut with defense features other security nuts don’t have.