DIN 7964E Socket Head Captive Screw

DIN 7964 E Socket Head Cap Captive Screws are designed to remain attached to the panel or assembly after being loosened, helping prevent the screw from being misplaced during maintenance or repeated access. The captive design combines a socket head cap screw with a retaining feature that limits complete removal while still allowing the fastener to be loosened and tightened when required.

The internal hexagon socket provides a recessed drive for installation and removal, making the screw suitable for applications where space around the fastener is limited. The captive feature is particularly useful for covers, panels, guards, and access points that need to be opened regularly without completely removing the fastening hardware. DIN 7964 E captive screws are commonly used in machinery, industrial equipment, electrical enclosures, control cabinets, access panels, protective guards, and maintenance covers. They provide a practical solution where keeping the fastener with the assembly can simplify servicing and reduce the risk of loose screws being lost.

Specification:

DIN 7964 E Captive Socket Head Cap Screws feature a reduced-diameter section on the shank that acts as the retaining area. When the screw is loosened, this smaller-diameter section remains engaged with the retaining part of the assembly, preventing the screw from being completely removed or lost. The screw combines a cylindrical socket head and internal hexagon drive with a specially shaped shank. The reduced-diameter section is an integral part of the screw rather than a separate retaining component, providing a simple captive fastening solution for panels, covers, guards, and other removable components.

Dimension Chart of DIN 7964E Socket Head Cap Captive Screw:

The DIN 7964 E dimension chart provides the key dimensions required to select the correct captive screw, including the thread diameter, screw length, head dimensions, hexagon socket size, and reduced-diameter shank section. The reduced section is an integral part of the screw and is essential to its captive function.

When selecting a DIN 7964 E screw, the threaded length and reduced-diameter section should be considered together with the thickness and retaining geometry of the panel or component. This ensures that the screw can be fully tightened while remaining retained when loosened.