Clutch head screws were probably the first type of security screw ever developed for commercial use. They are designed to prevent items secured with them from being easily removed or opened and are popular because of their low cost and the fact that you don’t need special screwdrivers to install them.

What is an ECX?

ECX bits are designed to fit a specific type of combination head screws that you see on many electrical components and terminals screws (shown below). These combination head screws can be turned with either a Phillips, slotted, or square drive screwdriver.

What are the 4 types of screw heads?

Types of Screw Heads/Screw Drives

  • Step 1: Slotted. Slotted screws are the simplest type of screw, consisting of a single slot at the head of the screw.
  • Step 2: Phillips. The Phillips screw, named after Henry F.
  • Step 3: Square Aka “Robertson”
  • Step 4: Torx Aka “Star”
  • 19 Comments.

What is the opposite of a Phillips screwdriver?

The Frearson screw drive, also known as the Reed and Prince screw drive, and specified as ANSI Type II Cross Recess, is similar to a Phillips but the Frearson has a sharp tip and larger angle in the V shape. One advantage over the Phillips drive is that one driver or bit fits all screw sizes.

What is a plus minus screwdriver?

Special screwdriver, which is neither slotted, nor Phillips type, but it combines the best of them both.

Why are there different screwdriver heads?

Answer: The primary reason for the wide variety of screw head drive types is to ensure the fact that you will never have the proper screwdriver close at hand when you need it.

Why are there different screw heads?

What are clutclutch head security screws?

Clutch head security screws, also known as irreversible screws, feature a specially designed screw head which can be tightened using a regular, flat-bladed screwdriver, but cannot be undone due to the head design.

What is a clutch head screwdriver used for?

The clutch head screwdriver is also known as bow-tie drivers, these drivers are used to work screws that have a bow-tie-shaped slot.

How do you remove the security one way screw on a clutch?

By applying pressure, via the removal tool, it’s possible to gain enough purchase to be able to loosen the security one way screw. As noted, it’s essential that a correctly sized removal tool is used. For example an RT61 clutch head removal tool is good for 13 gauge and 14 gauge screws.

How do you remove a clutch head?

Clutch head removal tools feature two, super-hard tungsten carbide tips which can effectively dig into the screw head. By applying pressure, via the removal tool, it’s possible to gain enough purchase to be able to loosen the security one way screw. As noted, it’s essential that a correctly sized removal tool is used.