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Security E6 Drive Captive Screws

Security E6 Drive Captive Screws host a unique, external non-slip drive head with six slots.

Captive screws are designed with an unthreaded portion below the head – often referred to as the reduced shank. Once installed, this screw is meant to self retain, which prevents any loss of fasteners.

These tamper-proof security screws require a special driver tool to remove or install. As a two-way reusable drive, these screws are ideal for applications where regular maintenance is required.

They are suitable for higher torque applications, and with the drive head designed to reduce and resist cam-out, the risk of damaging the drive head or application is greatly reduced.

Security E6 Drive Captive Screws can be used alongside Security Wave Nuts, Shear Nuts, Kinmar Reusable Nuts, Kinmar Permanent Nuts, 4-Hole Nuts or Pin TX Barrel Nuts for improved security.

Manufactured in A2 Stainless Steel as standard, with other materials available to order.

Available from Fastenright in thread diameters from M2 to M8 as standard, with lengths ranging from 8mm to 60mm.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and custom parts made to drawings.

Security E6 Drive Captive Screws Technical Drawing

d1 and L1 dimensions can be to customer specification.


Metric Technical Information & Available Sizes
Thread Diameter M2 M2.5 M3 M3.5 M4 M4.5 M5 M6 M8
dk (mm) 4.5 5.5
5.5 7.5 7.5 7.5 7.5 9.0 12.0
k (mm) 1.4 2.02 2.02 2.5 2.5 3.3 3.3 4.0 5.2
d1 (mm) 1.4 1.8 2.2 2.6 3.0 3.4 3.8 4.5 6.2
L1 (mm) 4.0 5.0 6.0 7.0 8.0 9.0 10.0 12.0 16.0
Available Sizes M2 M2.5 M3 M3.5 M4 M4.5 M5 M6 M8
 black icon image = Available
Size not listed? Please make an enquiry – we may be able to provide it.
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