Tufbolt Security Bolts - One Way Bolts - Tufnut Carriage Bolts

Security Bolts
One Way Bolts

Tufbolt Security Bolts

Tufbolt Security Bolts are steel carriage bolts (Grade 2 ) without a square neck beneath the head. They are useful for metal-to-metal fastenings where the square neck of a regular carriage bolt won't fit into a drilled hole. On a sign installation, the Tufbolt anti theft bolt does not damage the bond between the reflective sheeting and the substrate.

The CB1 carriage bolt adapters were originally developed for people who wanted Tufbolts in different lengths than our standard TB25 size. They raise the square neck of a carriage bolt so it doesn't enter a round hole in a sign face, thereby performing the same function as the Tufbolt.
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One-Way Security Bolts

One-Way Bolts are steel security bolts (Grade 2) which can be held with a screwdriver to prevent turning during installation, but can’t be"unscrewed".

There is a special removal tool available by phone to recognized customers that allows these bolts to be removed.
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Carriage Bolts

Carriage Bolts are recommended for use with Tufnut security hardware in all situations where the square neck is not a problem. The round head is difficult to grasp, while the square neck prevents the bolt from turning.

Our most popular sizes are listed below. We can supply them for you in all sizes if you cannot obtain them locally or from your Tufnut distributor. Carriage Bolts are Grade 2 steel with zinc plating.
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