Mounting half-screw SCHROFF 21100-748 for chassis and panels, model VE100

Mounting half-screw SCHROFF 21100-748 for chassis and panels, model VE100 is a purpose-built fastening component intended for securing modules, circuit boards and panels within electronic chassis and rack enclosures. Manufactured to standardized dimensions for industrial and telecommunications applications, this half-threaded screw provides a solid mechanical connection where a captive or partial-thread fixation is required. The design focuses on compatibility with common enclosure materials and mounting brackets, offering repeatable, stable installation in service environments.

Advantages

The SCHROFF half-screw features a half-thread profile that enables controlled engagement depth and improved alignment during assembly. Its construction delivers consistent clamping force suitable for repeated insertion and removal of modules without compromising the mating threads. The standardized form factor ensures interchangeability with compatible chassis and panel hardware, reducing the need for custom fasteners and simplifying maintenance in rack and enclosure systems.

Suitable for

• Mounting plug-in modules and mezzanine boards in electronic chassis
• Securing panels and sub-assemblies in rack enclosures
• Applications in industrial control cabinets and telecom equipment
• Maintenance and field-repair tasks that require frequent module removal

Key specifications

• Fastener type: half-thread screw (partial threaded shank)
• Intended use: chassis and panel mounting for electronic assemblies
• Material and finish: corrosion-resistant metal suitable for enclosure hardware (manufacturer-specified)
• Mechanical behavior: designed for repeated engagement with panel nuts or threaded inserts
• Form factor: standardized head and threaded length for compatibility with rack and enclosure mounting systems

How to use

Install the half-screw by aligning the component or panel to the enclosure mounting point and inserting the screw through the access hole until the threaded portion engages the mating nut or threaded insert. Tighten to the torque recommended for the enclosure hardware to achieve secure clamping without over-stressing the threads. For assemblies that require removable modules, ensure the screw is not fully threaded through the entire shank so the partial thread provides the intended capture and alignment function.

Usage recommendations

Verify compatibility with the chassis or panel threaded insert and follow any torque specifications provided by the enclosure manufacturer. Use corrosion-resistant or plated variants where environmental exposure is expected, and inspect fasteners periodically in high-vibration environments to maintain secure connections.