A tamper-proof fastener that can be installed with a slotted screwdriver bit that cannot be removed.

Used to install burglar bars to a wooden frame.

Ideally used in public spaces where theft and/or tampering with accessories need to be minimized.

To remove a one-way screw you would have to drill the screw out with a metal bit.

Can be used with a plug to install public bathroom accessories like toilet roll holders, door hooks, towel rails, door stoppers etc.