Electro Hardware MMF1829M09F16M4 Hex Standoff M4x0.7

Product Description

The ELECTRO HARDWARE MMF1829M09F16M4 is a male-female hex circuit board standoff designed to create precise spacing between PCBs and mounting surfaces in electronic assemblies. Machined from 303 stainless steel with a bright uncoated finish, this standoff meets the QQ-S-763 federal specification for stainless steel fasteners. The hex body measures 6 mm across flats, allowing standard hex tooling for installation. With an overall length of 28.53 mm and a body length of 19 mm, it provides consistent, repeatable standoff height across high-density board stacking applications. Electronics assembly technicians and field service engineers working with industrial control panels, HVAC control boards, and similar equipment rely on hardware like this for secure, vibration-resistant PCB mounting.

This standoff is suited for use in residential and commercial electronic control assemblies where metric fastener standards apply. Typical applications include circuit board mounting in HVAC control enclosures, industrial automation panels, and OEM equipment builds. The M4x0.7 thread pitch is common in metric-fastened PCB assemblies. The male end engages a threaded board hole or nut while the female end accepts the next fastener in a stacked configuration, making it well suited to multi-board or board-to-chassis mounting.

Key Features

• 303 stainless steel construction meets QQ-S-763 federal fastener specification
• Male-female hex configuration enables stacked or chassis-mount PCB installations
• Overall length of 28.53 mm with a 19 mm body length for precise board spacing
• M4x0.7 thread on both ends with a 9.53 mm thread length on the male side and 11.10 mm thread depth on the female side
• 6 mm hex width across flats compatible with standard metric hex drivers and wrenches
• Bright uncoated finish for corrosion resistance without dimensional interference

Compatibility

Designed as a metric-thread hex standoff for M4x0.7 PCB mounting applications in electronic control assemblies. Confirm thread pitch, standoff height, and hex width requirements against your specific board and enclosure specifications before installation.

Installation Notes

Installation is typically performed by electronics assembly technicians or field service personnel familiar with metric fastener systems. Power down and de-energize all circuits before working on or near any control board assembly. Use a calibrated hex driver or wrench sized for 6 mm across flats to avoid rounding the hex body. Do not overtighten - apply only enough torque to seat the fastener securely without stressing the PCB substrate or mounting boss.