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Clutch Head Raised Countersunk Security Screws

Tamper Proof Clutch Head Raised Countersunk Screws for the Electrical Trade

Clutch Head Security Screws have unique heads that require only a standard slotted screwdriver for insertion, making this the ideal security screw for one way permanent applications.

The unique head design of the vandal-resistant Clutch Head Security Screw means it is suitable for medium torque applications and is a one-way screw – or a 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, meaning when it is turned anti-clockwise the tool simply slips out.

M3.5 Security Screws are often used in electrical applications and may be found in public areas where maintenance is not required but security is of the utmost importance to prevent vandals from tampering.

The medium, one way permanent security resistance these screws provide comes at a relatively low cost, providing an economic and secure option.

Also referred to by names such as clutch drive, one way screws, one way round screws and perma screws. M 3.5 electrical security screws are also referred to as M 3 5 screws.

Non-standard sizes and materials are available to order as specials, including custom parts made to drawings.Clutch Head Raised Countersunk Security Screws Technical Drawing

Metric Technical Information & Available Sizes
Thread Diameter M3.5
dk (mm) 6.7
m (mm) 2.1
Available Sizes M3.5
12mm
20mm
25mm
30mm
40mm
50mm
60mm
70mm
black icon image = Available
Size not listed? Please call to discuss – we may be able to provide it.

Clutch One Way Permanent Raised Countersunk Security Screw for the Electrical Trade

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