Screw Torx M2.5×12.3 SCHROFF 21101783 — Torx machine screw M2.5 length 12.3 mm

SCHROFF Torx screw M2.5×12.3 is a precision machine fastener designed for electronics and computer component assembly. With a Torx drive and a nominal metric thread of M2.5 and a length of 12.3 mm, this screw is intended for compact enclosures, printed circuit boards, server racks and chassis where consistent torque transfer and minimized cam‑out are important. The screw is produced to fit small threaded holes common in electronic housings and mounting hardware.

Advantages

The Torx head geometry delivers improved driver engagement compared with slotted or Phillips heads, reducing the risk of cam‑out and allowing more accurate torque application. The small M2.5 thread and precise length provide repeatable clearance and clamp force in tight assemblies. The machine screw form offers stable axial load capacity for mounting metal brackets, PCB standoffs and equipment panels. Its dimensions make it suitable for use where space is limited and reliable fastening is required.

Suitable for

• Mounting PCBs and electronic modules in small enclosures
• Securing panels, brackets and rack components in server chassis
• Attaching standoffs, spacers and grounding points in assemblies
• Repair and maintenance of computer components and telecommunications equipment

Key specifications

• Drive type: Torx head for improved torque transfer
• Thread size: M2.5 (metric fine thread)
• Length: 12.3 mm (overall screw length)
• Application: machine screw for metal and tapped holes in electronics
• Typical use environment: electronic enclosures, racks, chassis and PCB mounting

How to use

Select a correctly sized Torx driver bit that matches the screw head to avoid damage to the drive recess. Prepare mating threads or tapped inserts and ensure the screw aligns with the hole before applying torque. Use steady, controlled torque appropriate for M2.5 fasteners and the materials being clamped; avoid over‑tightening to prevent thread stripping or damage to thin panels and PCB substrates. For assemblies that require consistent preload, use a calibrated torque driver and follow the equipment manufacturer's recommended torque values for small metric screws.

Usage recommendations

Inspect mating threads and apply suitable threadlocker or washer types where vibration or electromagnetic equipment standards require secure retention. When working on PCBs, avoid contact between screw heads and sensitive components; consider using insulating washers or standoffs where electrical isolation is needed.