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Clutch Head One Way Round Security Machine Screws

Tamper proof clutch head security screws are a 1-way permanent security solution

One way screws are ideal where maintenance is not required, used mainly in areas such as:

  • Train / bus stations
  • Prisons
  • Public facilities and toilets
  • Industrial roofing

Tamper Proof Clutch Head Drive One Way Permanent Security Screw – Stainless Steel & Mild Steel Zinc Plated

Thread / Length (mm) 5 6 8 10 12 16 20 25 30 35 40 45 50 55 60 70
M3 marker-image marker-image marker-image marker-image marker-image marker-image
M4 marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image
M5 marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image
M6 marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image
M8 marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image marker-image

Features

Vandal Resistant 1 Way Security Screw With Slotted (Clutch Head) Drive
Tamper proof – Permanent Security Fixing
Requires Standard Slotted Screwdriver

Clutch Head Security Screws

Tamper Proof Clutch Head security machine screws are available off the shelf in stainless steel and mild steel zinc plated with other materials and sizes available to order.

The Clutch Head Security Screw has a unique head that requires only a standard slotted screwdriver for insertion, making this the ideal security screw for one way permanent applications. Although the clutch head security screws provide an excellent permanent security solution for mass usage they can be time consuming to install, therefore when speed is essential, we offer another one way permanent option, the ‘Sentinel Security Screw’, which utilises a modified Pozi drive allowing standard pozi drill bits to be used for fast and high volume installation.

Due to the design of the vandal resistant Clutch Head Security Screw it is suitable for medium torque applications and is 1 way – Permanent Fixing. The unique drive system has a special chamfer at either side of the slotted drive enabling the screws to be turned in only one direction, so when turned anticlockwise the tool simply slips out.
The clutch head security screw is most commonly seen in public areas such as commercial toilet facilities, where maintenance is not required but security is essential to prevent vandals tampering.

Tamper Proof Clutch Drive security screws offer a medium and one way permanent security resistance against vandals and thieves at a relatively low cost , proving an economic and secure equilibrium. Within the industry Clutch Head security screws are also referred to by other names including Clutch Drive, One Way Screws, One Way Round Screws, Perma Screws.

For more information and technical data regarding tamper proof Clutch Head security products please call our sales team.

Note: Special 2 Hole Security Screws can be made to order including small volume manufacture, modifications and custom parts to drawings.

Tamper Resistant Clutch Head machine screws can be used with security Wave Nuts, Shear Nuts, Kinmar Reusable Nuts, Kinmar Permanent Nuts, 4-Hole Nuts or Pin Torx Barrel Nuts for added security.

*Special removal tools are available but are only recommended for use with stainless steel clutch head screws. Fastenright Ltd only supplies removal tools to account customers that have bought the corresponding screws from our company. We will refuse to sell removal tools to non-account customers.

Clutch Head pan machine screw technical drawing

M3 M4 M5 M6 M8
DK (mm) 5.5 7.0 9.0 10.5
K (mm) 2.0 2.6 3.3 3.9

*For guidance purposes only

Clutch Head One Way Round Security Screws