Electro Hardware S785-M07-F16-H Circuit Board Spacer No. 8

Product Description

The ELECTRO HARDWARE S785-M07-F16-H is a round, female unthreaded circuit board spacer designed to create precise standoff clearance between a PCB and a mounting surface. It accepts a No. 8 screw and is manufactured from 18-8 / 303 stainless steel with an uncoated finish, meeting fastener standard QQ-S-763. At 0.125 inches overall length, 0.171 inches inside diameter, and 0.3125 inches outside diameter, this spacer provides consistent board-to-board or board-to-chassis separation in tight assemblies. Licensed electricians, electronics technicians, and HVAC controls technicians install these spacers during control board mounting on equipment such as furnaces, air handlers, and commercial electrical enclosures.

This spacer is suited for use in any application requiring a compact, corrosion-resistant standoff for PCB mounting. Its stainless steel construction makes it appropriate for both indoor and light industrial environments where moisture or chemical exposure may be a concern. Typical installations include mounting control boards in HVAC equipment, industrial control panels, and similar electrical assemblies where a No. 8 fastener is the specified hardware. The female unthreaded design accepts a screw passed through the board and into the spacer, holding the board at a consistent height off the mounting surface.

Key Features

• 18-8 / 303 stainless steel construction provides corrosion resistance for demanding environments
• Female unthreaded round body accepts No. 8 screws for straightforward installation
• 0.125 inches overall length with tight length tolerance of -0.005 to 0.005 inches for consistent stack height
• 0.171 inches inside diameter with ID tolerance of 0.000 to 0.010 inches for reliable screw fitment
• Uncoated finish per fastener standard QQ-S-763
• Compact 0.3125 inches outside diameter suits dense PCB layouts

Compatibility

Designed as an OEM-style replacement or new-installation circuit board spacer for any application specifying a No. 8 screw, female unthreaded, round standoff with 0.125 inches overall length in stainless steel.

Installation Notes

Installation is typically performed by a licensed electrician or qualified electronics technician. Always de-energize and lock out the equipment before accessing any control board or enclosure per NFPA 70E safe work practices. Seat the spacer against the mounting surface before passing the No. 8 fastener through the PCB and spacer. Do not overtighten the fastener, as the unthreaded bore does not engage screw threads and excess torque can crack the circuit board.