A Bryce fastener expert is ready to recommend the perfect protection to fit your needs and budget.
See our Key-Rex® Wellhead Nut brochure for more technical information.
KEy-REX® ANTI-THEFT TECHNOLOGY PLUS STRUCTURAL INTEGRITY
Custom made to meet grade 2H nut specifications. Certified for the pipeline industry.
2H Nut Retrofit – Seamlessly replaces standard 2H nut.
No Special Tools – Uses same 2H Nut wrench to install and remove. No need to buy separate installation tools.
Incredible Torque – Same torque specs and holding power as Teflon coated 2H Nuts — up to 2,600 ft lbs.
Sea Spray Strong – Anticorrosive Teflon® coating withstands punishing salt spray, perfect for sea oil drilling stations.
Exclusive-to-You Keyway – Your Key-Rex® Wellhead Nut can only be installed & removed by your driver bit (read more below).
Hardware Sealed Security Cap — The security cap completes this rugged assembly by sealing the nut inside and keeping debris out. The cap locks on tight and stays within specification at the top of the stud.
Sledge Hammer Tough – While tampering is unavoidable, Key-Rex® Wellhead Nut can be removed with its matching driver bit tool even after an attack on the fastener. This helps eliminate the need to repair entire Christmas tree assembly.
Redundant Security Cap Driver — Extra set of pins in case of over torquing. Pins can be knocked out and replaced in the field, if needed.
We designed the Key-Rex® Wellhead Nut with defense features other security nuts don’t have.
Dual Patented, Complex Design — Key-Rex® can’t be successfully duplicated on a lathe, mill or by using molding techniques.
The entire nut assembly is patented along with the keyway process. This means each licensed user is patent protected and receives their own patented Key-Rex® Wellhead Nut component.
Ease of Use — The Key-Rex® Wellhead Nut is installed/uninstalled using the same tool by any user on a Wellhead/Pipeline System. There are no requirements to purchase special tools to install or uninstall.
High Torque — The same high torque values as specified for standard pipeline/wellhead nuts. Since the torque tension is the same, there’s no drop-off in hold. The Key-Rex® Wellhead Nut can’t be removed without the exact matching tool. No other security nuts can boast these high torque values.
Avoid Catastrophic Failure — Testing shows the Key-Rex® Wellhead Nut is recoverable after an attack. Even if the keyway is damaged by a chisel, the nut can still be removed. This saves the Christmas Tree from being ruined, disassembled, or compromising the whole wellhead component.
The extra hardness and holding power helps keep the inner protector nut clean from debris. The unique tri-pin keyway adds another layer of tamper protection.
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