Electro Hardware S785-MO4-F16-G Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S785-MO4-F16-G is a round, female unthreaded circuit board spacer machined from aluminum grade T-3 to QQ-A-225A Comp 2 specification. It provides a fixed standoff between a printed circuit board and a mounting surface, maintaining consistent board-to-substrate clearance in electronic assemblies. The spacer measures 0.125 inches overall length with a 0.141-inch inside diameter and a 0.3125-inch outside diameter. Designed for No. 6 screw installations, it ships uncoated and is sized for use in inch-system assemblies. Electronics assemblers, control board technicians, and HVAC or electrical panel service professionals install this type of hardware during board mounting and replacement work.

This spacer is suited for residential and light commercial electronic control assemblies where circuit boards require secure, non-threaded standoff support. Typical applications include HVAC control board mounting, electrical enclosure panel assemblies, and general PCB installation where a No. 6 fastener is used. The uncoated aluminum finish makes it appropriate for dry, indoor environments. Its compact 0.125-inch length accommodates tight board-to-chassis clearances common in modern HVAC and electrical control assemblies.

Key Features

• Female unthreaded design accepts No. 6 screws for tool-free board alignment during installation
• Aluminum grade T-3 construction per QQ-A-225A Comp 2 specification for consistent material quality
• 0.125-inch overall length provides precise, low-profile standoff clearance
• 0.3125-inch outside diameter and 0.141-inch inside diameter with controlled tolerances for repeatable fitment
• Uncoated finish suited for dry indoor enclosure environments
• Round body shape for standard PCB mounting hole patterns

Compatibility

Designed as an OEM-style replacement or new-install spacer for circuit board assemblies using No. 6 inch-system fasteners in residential and commercial electronic control panels.

Installation Notes

Installation is performed by electronics assemblers or qualified technicians servicing control boards in HVAC, electrical, or similar equipment. De-energize and lock out all power to the equipment before servicing any control board or panel assembly. Use appropriate ESD precautions when handling printed circuit boards. Verify fastener size and board hole diameter against the spacer inside diameter tolerance before assembly to ensure proper fit.