Electro Hardware MP1039M19F16M3 Female Hex Standoff M3

Product Description

The ELECTRO HARDWARE MP1039M19F16M3 is a female hex circuit board standoff designed to create fixed spacing between PCBs and mounting surfaces in electronic assemblies. Machined from nylon with a plain, uncoated finish, this standoff accepts an M3 x 0.5 threaded fastener and is fully threaded through its entire 20 mm body length. The hex body measures 6 mm across the flats, allowing installation and removal with a standard hex wrench or nut driver. With a tensile strength of 16,500 psi, the nylon construction provides adequate mechanical hold while offering electrical isolation between board layers and mounting hardware. Licensed electricians, electronics technicians, and PCB assembly professionals are the typical installers.

This standoff is suited for use in control panels, electronics enclosures, and circuit board stacking applications where electrical isolation and precise board-to-board spacing are required. The metric M3 x 0.5 thread size is common in industrial control boards, HVAC electronic modules, and light commercial electronics assemblies. The nylon material makes it appropriate for environments where metal standoffs could cause unwanted conductivity or galvanic corrosion concerns.

Key Features

• Fully threaded female M3 x 0.5 interior thread through full 20 mm body length
• Nylon construction provides electrical isolation between PCB and mounting surface
• Hex body shape, 6 mm across flats, compatible with standard metric hex tooling
• Plain, uncoated bright finish suitable for general indoor electronic assembly use
• Meets MIL-P-17091B fastener standard
• Length tolerance held to -0.13 to 0.13 mm for consistent board-to-board spacing

Compatibility

Designed as an OEM-style replacement or new-installation standoff for circuit board assemblies requiring an M3 x 0.5 female hex nylon standoff with a 20 mm overall length.

Installation Notes

Installation is performed by electronics technicians or electricians working on PCB assemblies. Always power down and de-energize the equipment fully before handling circuit boards or installing standoffs. Use a metric hex driver or appropriately sized nut driver to seat the standoff without over-torquing the nylon body, as the material can crack if overtightened. Follow applicable assembly documentation and relevant NEC or IPC standards for the equipment being serviced.