Drive Bit Size: T10; Package: 50 Sets ( 50 pcs Screws and 50 pcs nuts) The matched screws and nuts combination help save your time and money.
Thread Part Length (Screws): 12mm
Feature a pin in the center of the drive makes the installation and removal very difficult without a specially designed matching bit. The tamper proof design makes it very popular in public areas like bathroom stalls, gutters, license plates, schools, boats and cars.
Material: High Quality 304 Stainless Steel 18/8, great strength and good corrosion resistance to make fasteners last! They're perfect choice for tamper proof screws because they are suitable for long lasting, outdoor projects.