Electro Hardware MMF1311M09F16M3 Hex Standoff M3

Product Description

The ELECTRO HARDWARE MMF1311M09F16M3 is a male-female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Manufactured from 303 stainless steel with a bright, uncoated finish, this standoff meets the QQ-S-763 fastener standard. The hex body measures 4.5 mm across flats, with an overall length of 14.76 mm and a body length of 10.00 mm. The male thread length is 4.76 mm and the female thread depth is 6.40 mm, both on an M3 x 0.5 thread pitch. Licensed electricians, electronics technicians, and panel builders install these standoffs in control boards, relay panels, and electronic enclosures where repeatable board spacing and secure mechanical mounting are required.

This standoff is suited for metric fastener applications in residential and commercial electrical control panels, HVAC control boards, and industrial electronic assemblies. Its stainless steel construction makes it appropriate for environments where corrosion resistance is a factor. The M3 x 0.5 thread size is a common metric pitch used in PCB mounting hardware across a wide range of OEM and field-service applications. Length tolerance of -0.150 to 0.150 mm ensures consistent stack height in multi-board assemblies.

Key Features

• M3 x 0.5 male-female thread configuration for stacking or panel-mount PCB applications
• 303 stainless steel construction with bright, uncoated finish for corrosion resistance
• Hex body profile at 4.5 mm across flats allows standard wrench or nutdriver installation
• Overall length of 14.76 mm with a 10.00 mm body length and 4.76 mm male thread
• Meets QQ-S-763 fastener standard
• Length tolerance held to -0.150 to 0.150 mm for consistent board spacing

Compatibility

Designed as a metric M3 x 0.5 hex standoff for use in PCB mounting, control board assemblies, and electronic panel fabrication where a male-female stainless steel standoff is specified.

Installation Notes

Installation is performed by electricians or electronics technicians during panel assembly or board replacement. Power down and de-energize all circuits before working inside any electrical enclosure. Use a wrench or nutdriver sized for 4.5 mm hex to seat the standoff without over-torquing the threaded interfaces. Ensure mating threads are clean and free of debris before engagement to avoid cross-threading the M3 fastener.