Security Screws

Tufnut Security Screws

We offer a limited range of security screws that are useful for sign security, solar panel security, and anchoring computing and outdoor equipment.

One Way Screws are fastened with a regular flat screwdriver but cannot be removed without a special wrench.

These are useful in securing equipment or fixtures that are at risk for theft but are unlikely to be removed for maintenance or replacement. The screws have a self-tapping thread and can be mounted on sheet metal or wood.

One-way screws are the most economical of the three varieties of screws we offer, in part because they do not require the purchase of a special driver to install. Removal tools are available by request to existing customers.

Torx Security Screws can be fastened and removed with a Torx security driver.

This type of security screw is recommended for securing vulnerable items that will require periodic removal for service or replacement. These screws feature a uniquely shaped drive slot, and they can’t be installed or removed without the matching bit.

We stock a variety Torx screws with self-tapping threads that can be installed in pre-drilled holes in metal or wood. The screws can be reused. The drivers are available. Give us a call !

Tri-Groove Security Screws can also be fastened, removed, and reused. They use a special socket which works with a standard 1/4" square driver. We carry 1/4-20 tri groove machine screws and #14 sheet metal screws in lengths ranging from 3/4" to 2 1/2".

Tri-Groove screws can be used to replace standard screws on equipment when you need to secure access to machine parts or to mount signs and fixtures in high-risk locations. The driver-mounted socket makes it easy for authorized personnel to install and remove the tri groove screws in recessed mountings or narrow channels.

Online ordering is provided by Paypal.
If you prefer not to use Paypal, it's easy to place orders by phone,
and we also accept purchase orders by mail, fax, or email.

Security Fasteners
One Way Screws
One Way Screws

One way security screws are used to secure anything that needs to be be screwed down permanently. The screws have sheet metal screw threads which can be used with pre-drilled holes in either wood or metal. They are fastened with a regular screw driver, but cannot be removed because of the curved surfaces on the screw head. They're best use is for security fastenings that are unlikely to be removed at any time.

Button Torx Screws
Button Torx Screws

Button Torx security screws are best used to secure property that needs to be removed or accessed occasionally. They are fastened with a special button torx driver, and can also be removed with that driver. The screws also have sheet metal screw threads which can be used with pre-drilled holes in either wood or metal. This screw is used when it is likely you will need to remove the secured item but require a high security screw to protect your equipment.

Tri Groove Machine Screws
Tri Groove Machine Screws

TriGroove Machine screws are fastened with a special socket driver, and can also be removed with that driver. These screws have machine screw threads which could be used with security nuts, or with threaded holes in metal. These Tri-Groove screws are also used when it is likely you will need to remove the secured item but require a high security screw to protect your equipment.


Tri Groove Sheet Metal
Tri Groove Sheet Metal

TriGroove Sheet Metal screws are fastened with a special socket driver, and can also be removed with that driver. These screws have sheet metal screw threads which are used with drilled holes in metal or wood. These Tri-Groove screws are also used when it is likely you will need to remove the secured item but require a high security screw to protect your equipment.

Tri Groove Screw Drivers
Tri Groove Screw Drivers

The Tri-Groove socket is used with a standard 1/4 inch driver to fasten and remove the Tri-Groove security screws. We also have drivers for the Button Torx Screws, and removal tools for the One Way Screws. Drivers are not sold separately from screw orders unless you are a current customer or you pass a security screening interview.