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Security E5 Drive Captive Screws

E5 Drive Security Captive screws host a dome head which features a unique external non-slip drive with five 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.

The drive is designed to reduce and resist cam-out, which can occur more frequently in more common drives, which in turn reduces the risk of damage to the screw or application.

With a reusable two-way drive, these screws are ideal for applications that require regular removal and re-installation for maintenance work. They require a special driver tool to install and remove.

E5 Drive Security Captive screws are tamper-resistant and provide a medium security resistance, while being usable in higher torque applications.

Available in A2 Stainless Steel from Fastenright. Available in Micro sizes from M2 to M5 and lengths ranging from 8mm to 50mm.

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

Security E5 Drive Captive Screws Technical Drawing

d1 and L1 dimensions can be to customer specification.


Metric Technical Information & Available Sizes
Thread Diameter M2 M2.3 M2.5 M2.6 M3 M3.5 M4 M4.5 M5
dk (mm) 4.5 4.5 5.5 5.5 5.5 7.5 7.5 9.0 9.0
k (mm) 1.45 1.45 2.02 2.02 2.02 2.5 2.5 3.3 3.3
d1 (mm) 1.4 1.6 1.8 1.9 2.2 2.6 3.0 3.4 3.8
L1 (mm) 4.0 4.5 5.0 5.2 6.0 7.0 8.0 9.0 10.0
Available Sizes M2 M2.3 M2.5 M2.6 M3 M3.5 M4 M4.5 M5
 black icon image = A2 Stainless Steel
Size not listed? Please make an enquiry – we may be able to provide it.
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