Tamper Proof screws are used in areas where prevention of public tampering or vandalism is important. They are distinguished by their unconventional drive styles, which are designed to minimize the possibility of removal. Tamper Proof screws can be found in schools, public parks, correctional facilities, and many other locations where there is a high level of public activity. One-way Tamper Proof screws install with a standard flat-blade driver but are not removable.