Electro Hardware S1103-M07-F16-H Round Board Spacer

Product Description

The ELECTRO HARDWARE S1103-M07-F16-H is a round, female unthreaded circuit board spacer machined from 18-8 Grade 303 stainless steel. It measures 0.875 inches overall length with an outside diameter of 0.375 inches and an inside diameter of 0.171 inches, sized to accept a number 8 screw. The uncoated stainless construction meets the QQ-S-763 fastener standard, providing corrosion resistance suited to electronics mounting applications in HVAC control panels, electrical enclosures, and industrial assemblies. Electricians, controls technicians, and panel builders use these spacers to maintain standoff clearance between a circuit board and a mounting surface or chassis.

This spacer is well suited for mounting residential and commercial control boards, relay panels, and printed circuit assemblies where a number 8 fastener pattern is used. The female unthreaded bore accepts a number 8 screw passed through from the board side, creating consistent standoff spacing across multi-board assemblies. Its compact 0.375-inch outside diameter fits standard PCB mounting hole layouts without interference with neighboring components or traces.

Key Features

• 18-8 Grade 303 stainless steel construction meets QQ-S-763 fastener standard
• Female unthreaded bore sized for number 8 screws, inside diameter 0.171 inches
• Overall length 0.875 inches with length tolerance of -0.005 to 0.005 inches
• Outside diameter 0.375 inches with inside diameter tolerance of 0.000 to 0.010 inches
• Uncoated finish — no plating to crack, flake, or interfere with grounding contact
• Round body shape for uniform standoff height across all mounting points

Compatibility

Designed as an OEM-style replacement or new-install spacer for circuit board assemblies requiring a round, female unthreaded standoff with a number 8 screw clearance bore and a 0.875-inch standoff height.

Installation Notes

Installation is performed by electricians or controls technicians during panel assembly or circuit board replacement. De-energize the control panel and discharge any capacitors before handling circuit boards or fasteners. Use the appropriate number 8 screw length to account for the full 0.875-inch spacer height plus board thickness and chassis wall. Work to applicable NEC guidelines when mounting control boards inside electrical enclosures.