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Washers For Captive Screws.

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Washers For Captive Screws

What are Washers For Captive Screws?

Captive Washers are a type of retaining fastener designed to be used in conjunction with Accu's Captive Screws to provide a permanent hold within an assembly.

Accu’s Captive Washers are designed by Accu and feature a specialised internal thread, allowing them to be fastened onto a Captive Screw for a more secure fastening solution.

The washer is compressed during assembly to lock into place on the Captive Screw. This prevents the screw from coming loose and secures the components onto the panel.

The combination of Captive Screws and Captive Washers forms a cost effective locking solution for safety applications.

As this is intended to be a permanent fastening, Captive Washers are not designed for reuse after compression.

A detailed explanation on best practices when using these components and recommended tightening torques can be found in our article discussing how to install Accu's Threaded Captive Washers.

EU Machine Directive 2006/42/EC Compliance.

Captive Washers can be used to create captive fastenings, which are often required to be fitted on equipment such as safety guards for compliance with EU Machine Directive 2006/42/EC.

More information on this type of application and best practices in retaining screws can be found within our Captive Screws & Fasteners Guide.


All of Accu’s threaded Captive Washers are manufactured from A2 Stainless Steel. Our satin black oxide finish is also available for this range.

If alternative materials or finishes are required, please contact us.

Metric Captive Washer Sizes.

Captive Washers are available as standard in metric sizes ranging from M3 up to M6. A wide range of additional sizes can be custom manufactured on request.

Bespoke Washers For Captive Screws Manufacture.

High precision, bespoke manufacture of Washers For Captive Screws to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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