A Bryce fastener expert is ready to recommend the perfect protection to fit your needs and budget.
See our Penta-Bolt™ brochure for more technical information.
Penta head bolts made of 18-8 stainless steel.
The Penta-Bolt™ is the staple of ground lid and manhole cover security, and is typically specified for these applications. It requires a special pentagon socket which is not found in retail stores.
Unfortunately toolboxes are equipped to remove Penta-Bolt™ fasteners with common items such as locking pliers. Most notably, copper thieves are easily removing these fasteners. Penta-Bolt™ fasteners protecting copper should be replaced with High-Security Key-Rex® or Penta-Plus® bolts.
The savings in loss prevention can be significant. Cities and municipalities who have specified and used our High-Security drives experienced a significant reduction in copper wire theft — some have even achieved zero theft altogether.
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