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What Is Security Screw

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What Is Security Screw

Security screws,also known as tamper proof or tamper resistant screws. Their best characterization are their unconventional drive styles. Security screws are used in areas where an assembly is accessible to the public, as a means to deter or prevent vandalism.With an unconventional drive,the security screw is very difficult to be tampered, if not impossible without the matching driver. Therefore,security screws are used in many Public safety areas and securing materials from being tampered with, such as

electric power, railway, highway facilities,gutters, license plates, schools, cars and so on.

What is an “Unconventional Drive Style”?

Unconventional Drive Styles come in many varieties, but all share one common goal: difficult (if not impossible) installation or removal without the corresponding security bit or driver.According to different drive the screws are divided into reversible installation and irreversible  installation.Here are some typical drive styles.

l One Way Screws

One way Screws,or one direction screws,a kind of irreversible screws,get their name because of the drive style. The head of the screw features a slotted drive that is designed to instantly cause cam out if the driver is turned in the wrong direction. This is achieved by manufacturing the drive in quadrants that are gradually raised to accept the driver bit when turning the screw right, and reject it when turning the screw left. The One Way drive makes installation of the screws easy, requiring only a standard slotted bit, but removal of the screw difficult without the corresponding bit or a specifically designed removal tool.
One Way Screws are commonly seen in public areas such as bathroom fixtures and partitions, license plate frames on cars, wall or floor mounted safes, and wherever tampering after installation becomes a security issue. In general, One way Screws are particularly difficult to remove, which means that they should be used for long-lasting applications.

l Spanner (Snake Eye) Security Screws

Snake Eye security screws are installed using a spanner bit. Spanner screws are commonly referred to as snake eye because of the two dot drive system. Except using for securing materials from being tampered with, such as gutters, license plates, grills in jails, schools, boats and cars.,they are also used in food prep and processing areas like bathroom stalls and other public locations. Spanner screws can only be installed or removed with a spanner bit, which fits a pin into each of the screw’s two drive holes. Since Spanner screws can only be installed or removed through spanner bits.Although they are reversible installation, they are very resistant to tampering.

l Torx or Hex socket with Pin Security Screws

Torx with pin security drive can only be driven with security bits and are used to prevent tampering and theft. Security Screws in this variety are characterized by the hex socket, or star drive with a central pin. The pin grants additional tamper resistance as it prevents conventional screwdrivers and grabbing devices from tampering with the original installation.

l Tri-Groove Security Screws 

Tri-Groove security screws feature a Y type slot, which make the screws difficult to tampering. Tri-groove machine screws are installed, removed and reused with a special wrench that permits access to recessed mountings or deep channels. They can be used when there is no access to the fastening from the side.

The structure of security screws is simple and novel, the standard bolt is convenient for users, the screws make fastening and anti-theft integration. The "reverse locking" principle of security screws makes the anti-theft performance unique and reliable. For users,it’s easy to installation and removal with corresponding tools. 

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