Tamper Resistance SECURITY Fasteners are fasteners screws and nuts, that only can be remove by use of special security removal tool. For securely critical and sensitive applications, Anti-Theft and vandalisim prevention, security screws is your answer! All removal tools are sold separately. High Security Tamper Proof Fasteners and Screws are available In Stainless Steel material, options as Hex Sockets, Torx, 6-lobes, One Way, Spanner Drill, Two-Hole, One Side & With Pin.