Sentinel Countersunk Security Wood Screw

Sentinel Countersunk security wood screws are quick and easy to install, using only a standard cross head or Pozi driver. Quick to install with power drivers or standard screw drivers, these are a popular choice for installers and for large volume applications.

Sentinel countersunk wood screws have a unique head which can only be turned clockwise, so once securely tightened, they cannot be removed without using a drill.

• 1-way permanent countersunk wood screw
• Tamper-proof fixing for use where maintenance is not required
• Suitable for high torque applications

Designed to fix to wooden surfaces, we recommend creating a pilot hole before inserting the wood screw.

The Sentinel drive offers medium security resistance against vandals and thieves at a relatively low cost. An adaptation of the original Nettlefolds ‘Pozi’ drive, designed to provide a secure and permanent fixing, and can be used in high volume, inserted with a power tool.

With high resistance to cam-out, Sentinel screws are a preferred choice for applications requiring high volume, labour intensive work.

Sentinel countersunk wood 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 improved security.

Available in Zinc plated, with other sizes and materials available to order.

Specials made to order, including medium / high volume manufacture, modifications and custom parts to drawings – please enquire.

3/4″ (19mm)
1″ (25mm)
1. 1/4″ (32mm)
1. 1/2″ (38mm)
2″ (50mm)
2. 1/2″ (63mm)
3″ (75mm)
= Available Size not listed? Please make an enquiry – we may be able to provide it.