Electro Hardware MP417M03F21M2.5 Female Hex Standoff

Product Description

The ELECTRO HARDWARE MP417M03F21M2.5 is a fully threaded female hex circuit board standoff designed to secure PCBs and panels at a fixed distance from a mounting surface. It features an M2.5 x 0.45 metric thread, a 9 mm overall length, and a full 9 mm of usable thread depth. The hexagonal body measures 4.5 mm across flats, allowing installation and removal with standard hex tooling. The standoff is machined from brass and finished with a clear zinc chromate coating that meets ASTM B633 Type 1 and QQ-B-626 Comp 22 specifications. Electrical technicians and PCB assembly professionals use this fastener wherever a secure, reusable female-threaded mounting point is required on a circuit board assembly.

This standoff is suited for commercial and industrial electronics assemblies, control board mounting, enclosure builds, and instrumentation panels where metric M2.5 fastener systems are specified. Its compact hex body and precise length tolerance of -0.13 to 0.13 mm make it appropriate for close-tolerance board layouts. It is commonly installed by licensed electricians, electronics assembly technicians, and control panel builders working on low-voltage PCB mounting applications.

Key Features

• M2.5 x 0.45 female metric thread, fully threaded through the full 9 mm body length
• Hex body shape with 4.5 mm width across flats for wrench or socket installation
• Brass construction with clear zinc chromate finish for corrosion resistance
• Meets ASTM B633 Type 1 and QQ-B-626 Comp 22 finish standards
• Length tolerance held to -0.13 to 0.13 mm for close-tolerance panel assemblies

Compatibility

Designed as a metric M2.5 x 0.45 female hex standoff for use in PCB mounting, control board assemblies, and enclosure panel builds where M2.5 metric threaded fasteners are specified.

Installation Notes

Installation is performed by electricians or electronics assembly technicians. Power down all circuits before working on any PCB or control panel assembly. Use appropriately sized hex tooling to seat the standoff; avoid over-torquing to prevent thread damage in the brass body. Follow applicable NEC guidelines and equipment manufacturer instructions when integrating standoffs into electrical enclosures.