The Tufnut Works
Security Screw System


Loss-Prevention Solutions
NBA31 Security Screw - 5/16"x 2.5" & Tufnut

$2.65 (USD)

Our Nut/Bolt Assembly uses an adhesive-coated security screw and the Tufnuts to secure a machine to its work surface. Your machine requires enough space inside to allow a 3/8-inch hole to be drilled through the base and into the work table.

The bolts are adhesive coated to prevent the bad guys from turning the tails to loosen them. They are removable by authorized personnel.

This Nut/Bolt Assembly can be used to secure anything you'd normally fasten with a 5/16 x 2.5" bolt and nut. It can secure traffic signs, antiques, solar collectors, etc . . .

System is available with uncoated bolts - add an X to the part number.

Security Screw - 5/16"x 2.5" & Tufnut


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The Tufnut Works tufnut@tufnut.com
postal: PO Box 39, Tesuque, NM 87574
(505) 424-1954 | (800) 227-0949 | fax (505) 424-1956 
Updated:10/15/08