PIN-HEX Self-Tapping Security Screw

As the name states, this has an internal pin within the hexagonal socket which requires a special insert bit or key wrench to insert & remove. This reduces the risk of tampering by thieves or intruders undoing the screws.

Due to its 2-way reusable fixing capability, this is a useful security screw where maintenance is required.


Unique internal pin system.


Requires special tools.

Increased security.

Suitable for medium torque applications.

Application: Window grills, light fixtures in trains and buses, electronic equipment, defence equipment, prisons, hospitals, public signs, security cameras.

Material: Stainless Steel AISI 304.

Size Range: #4(2.9mm) to #14(6.3mm) up to 80mm length

Head Styles:

Countersunk (CSK) Head B4K44 – To seat the screws level with the surface. Sits flush without any projection.  

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Dome Head – For higher torque and clamping force.

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