Square Nut SCHROFF M2.5 stainless steel 4-sided nut SW5 pack of 100

Square Nut SCHROFF M2.5 stainless steel 4-sided nut SW5 pack of 100 is a compact fastening component designed for M2.5 threaded connections. Manufactured from stainless steel, the nut provides corrosion resistance and mechanical stability for use in confined assemblies such as electronic enclosures, instrument chassis and small mechanical fixtures. Supplied as a pack of 100, this 4-sided nut features a square profile that locates reliably in housings or slide-in channels, and an SW5 drive dimension for compatible tools and access clearances.

Advantages

The stainless steel construction offers resistance to corrosion and good dimensional stability under repeated assembly cycles, ensuring reliable clamping in electrical and mechanical assemblies. The square profile prevents rotation in appropriately sized slots or pockets, allowing secure torque transfer when tightening. Supplied in a bulk pack of 100, the product simplifies stock management and ensures consistent parts availability for small-series production or maintenance tasks.

Suitable for

• Fastening M2.5 screw threads in electronic enclosures and rack components
• Mounting small PCBs, brackets and internal chassis parts
• Use in confined spaces where low-profile, non-rotating nuts are required
• Maintenance, repair and small-volume production runs

Key specifications

• Thread size: M2.5
• Material: stainless steel
• Profile: square, 4-sided
• Drive/width across flats: SW5
• Pack quantity: 100 pieces
• Typical applications: electronic enclosures, chassis assemblies, mechanical fixtures

How to use

Insert the square nut into the designated pocket, slot or channel in the enclosure or chassis so the flat faces engage with the surrounding material to prevent rotation. Align the M2.5 screw with the internal thread and tighten using an appropriate driver or tool that matches the access clearance and SW5 dimension. Apply recommended tightening torque for M2.5 stainless steel fasteners to avoid thread damage and ensure adequate clamping force. For repeated installations, inspect threads and mating surfaces for wear or corrosion.

Usage recommendations

For secure and lasting assemblies, select mating screw material and coating appropriate to the operating environment to minimise galvanic corrosion. Use a torque-limiting driver when assembling sensitive electronic components and verify fit in sample housings before full production installation.