Sentinel Security Screws with Countersunk Head
Countersunk Head Sentinel Screws have a unique head which can only be turned one way, meaning that once they have been securely tightened they are very difficult to remove.
Installed using a standard crosshead or Pozi driver, they are quick to install with both screwdrivers and power drivers and are a popular choice for installers and large volume applications.
The sentinel drive offers medium security resistance against vandals and thieves at a relatively low cost.
It is an adaptation of the original Nettlefolds Pozi Drive, designed to provide a secure and permanent fixing, and can be used in high volume. With high resistance to cam-out, these screws are the preferred choice for applications requiring high volume, labour intensive work.
Available from stock in zinc plate, with a range of sizes and materials to order as specials.
Please contact us with your requirements to further your enquiry.
Thread / Length (mm) | 12 | 16 | 20 | 25 | 30 | 40 |
---|---|---|---|---|---|---|
M4 | ||||||
M5 | ||||||
M6 |
Countersunk Sentinel Security Screw Technical Information
M4 | M5 | M6 | |
---|---|---|---|
DK (mm) | 7.2 | 8.9 | 10.8 |
K (mm) | 2.7 | 3.0 | 3.6 |
*For guidance purposes only