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:

  •  1. Countersunk (CSK) Head B4K44 – To seat the screws level with the surface. Sits flush without any projection.  
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  • 2. Dome Head – For higher torque and clamping force.
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