Requires special driver bit or key for fixing and removal
Suitable for higher torque applications
An economic security solution
Available in A2 or A4 stainless steel and all stocked sizes are listed below. Pin Hex countersunk head screws in non-standard sizes and materials available to order. Small volume manufacture, modifications and custom parts also available to order
Thread / Length (mm)
Description: Pin Hex Countersunk Security Screws
Pin Hex Countersunk Head Security Machine Screws are vandal resistant and can only be fixed and removed by using a special driver bit or key to fit the Pin Hex Drive.
The Pin Hex drive makes it ideal for applications requiring medium security and where the fixing needs to be removed for maintenance
Advantages of Pin Hex screws
Designed to reduce cam-out, which can occur in Phillips and 2-hole drives
Less risk of damaging the drive tip, screw head and also the application
The Hex drive also allows better torque compared to conventional screw heads<
Special driver bit or key required
Pin Hex security screws offer a medium security resistance against vandals and thieves at a relatively low cost.
Within the industry Pin Hex security screws are also referred to by other names including Hex Pin, Tamper Pin Hex, Socket Screw with Pin and Din 7991 with Pin.
Tamper Resistant Pin Hex machine 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 added security.
Please see the stock size chart and technical information for all available sizes.
Introducing our patented premium security screw the "Tricone®".
Only available from Fastenright Ltd - all tools are uniquely coded and fully traceable providing the highest security
of any security screw on the market!