Captive Screws

Custom Captive Screws for Secure Assemblies

Pattern Fasteners manufactures standard, special and custom captive screws for industrial, engineering and high-compliance applications.

Captive screws are designed to remain attached to a panel, cover or assembly even when they are fully loosened. This helps prevent lost fasteners, simplifies maintenance and supports safer, more efficient servicing.

We can manufacture captive screws to customer drawings, existing samples and bespoke specifications, with close control over thread forms, dimensions, head styles, materials and finishes.

What Are Captive Screws?

Unlike a conventional screw, a captive screw is designed so that it cannot be completely removed from the component in which it is retained.

This can be achieved through a reduced shank, retaining feature, shoulder, groove or other application-specific geometry.

Captive screws are commonly used where:

Panels need to be removed regularly
Loose hardware must be avoided
Maintenance access needs to be quick and controlled
Fasteners must remain with the assembly
FOD prevention or component retention is important

Custom and Special Captive Screws

We manufacture captive screws for applications where standard off-the-shelf components do not meet the required design or performance specification.

Options may include:

Metric and imperial threads
Standard and non-standard diameters
Custom thread lengths
Reduced shanks
Shoulders and retaining features
Special head forms
Socket, slotted and specialist drive types
Bespoke overall lengths
Tight dimensional tolerances
Specialist material grades
Heat treatment and hardness requirements
Protective and decorative finishes
Drilling and other secondary operations

Our team can work from a technical drawing, sample or application requirement.

Captive Screws Manufactured to Your Specification

The correct captive screw design depends on how the fastener is retained, how the assembly is serviced and the mechanical demands placed on the component.

Important considerations may include:

Retention method
Panel thickness
Thread engagement
Required tightening torque
Available installation space
Head and drive accessibility
Material compatibility
Operating environment
Frequency of maintenance

Careful control of these features helps ensure the screw remains securely retained while still allowing reliable installation and removal.

Materials and Finishes

Captive screws can be manufactured in a wide range of materials to suit different mechanical and environmental requirements.

Options may include:

Carbon steel
Alloy steel
Stainless steel
Brass
Aluminium
Titanium
Specialist alloys

Protective and decorative finishes can also be incorporated into the specification, including bright zinc plating, chemical black, phosphate, chrome and other customer-specified coatings.