US security screws manufacturer 100% MADE IN THE USA

Call us: 480-503-3801

Lags that can take immense torque

Security Lag Bolts and Tamperproof Lag Screws

Lag Thread Security Bolts

Raptor Security Head Included

Standard Security and High Security Lag Bolts & Tamperproof Lag Screws

If you need a powerful driving security screw with extra strong hold, our High-Security Key-Rex® or STYKFIT®7 Lag threaded tamperproof security screws will exceed your expectations. Lag screws and bolts are rarely made into security screws because most security drives are not powerful enough to torque the screw without failing. Bryce Fastener’s Key-Rex® and STYKFIT®7 security drives far exceed the required torque. This is important because security lag screws and lag bolts are used in high torque applications such as pressure treated wood, concrete lag inserts, and pre-drilled plastic. Bryce Fastener’s tamper proof security lag bolts have been specified for wood signs in many National Parks. Our Lags are manufactured with an oversized Raptor™ Button Head. This helps them hold better in wood than standard Hex or Penta Head security lag screws. 

Standard-Security level Penta Head lag bolts are available by special order. 

Made in Stainless Steel

Click for more info about Lag Thread Security Bolts.

1230 N. Mondel Dr. Gilbert, Arizona 85233 Tel: 480-503-3801 Fax: 480-503-3834 Email: Facebook

Bryce Fastener is the world leader in high security locking bolts and fasteners, security screws, tamper proof and tamper-resistant screws.

KEY-REX™, Keyed-Lok®, Penta-Plus™, Hex-Pin™, and Tam-6lobe™ are registered trademarks of Bryce Fastener Mfg.
TORX® is a registered trademark of Acument Intellectual Properties, LLC
Copyright Bryce Fastener Mfg., Inc., 2019. All Rights Reserved. Prices Subject to Change Without Notice. Zero Theft is not Guaranteed.