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Clutch Head Round Security Self Drilling Screws

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.

The design of the vandal resistant Clutch Head Security Screw makes it suitable for medium torque applications. 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.

It has a drill-bit point which allows the screw to be self drilled, eliminating the need to drill a separate pilot hole.

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 resistant 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.

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.

Available from Fastenright in Stainless Steel, with other materials and sizes available to order.

Special Clutch Head Security Screws can be made to order as specials, including small volume manufacture, modifications and custom parts to drawings.Clutch Head Round Security Self Drilling Screws Technical Drawing

Imperial Technical Information & Available Sizes
Thread Gauge No.10
dk (mm) 8.9
m (mm) 1.75
Available Sizes No.10 (4.8mm)
3/4″ (19mm) black icon image
black icon image = Available
Size not listed? Please make an enquiry – we may be able to provide it.

Clutch One Way Round Self Drilling Security Screw

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