Electro Hardware S1143-M07-F16-H Board Spacer 8 Screw

Product Description

The ELECTRO HARDWARE S1143-M07-F16-H is a round, female unthreaded circuit board spacer designed to mount and separate printed circuit boards within electrical enclosures and control assemblies. Machined from 18-8 grade 303 stainless steel and left uncoated, this spacer provides corrosion resistance and dimensional stability in demanding service environments. It accepts a number 8 screw, measures 1.5 inches overall length, 0.171 inches inside diameter, and 0.375 inches outside diameter. Electricians, control panel builders, and electronics technicians use this fastener hardware when assembling or servicing board-level components in HVAC controls, industrial panels, and related equipment.

This spacer is suited for applications where a precise standoff distance is needed between a circuit board and a mounting surface or between stacked boards. Its female unthreaded bore and round body shape make it appropriate for use in residential and light commercial control enclosures, HVAC control boards, relay panels, and similar assemblies requiring a clean, stable mounting solution. The stainless steel construction meets the QQ-S-763 fastener standard, making it appropriate for environments where mild corrosion resistance is a requirement.

Key Features

• 18-8 grade 303 stainless steel construction meets QQ-S-763 fastener standard
• Female unthreaded bore accepts a number 8 screw
• 1.5 inches overall length with a tight length tolerance of -0.005 to 0.005 inches
• 0.171 inches inside diameter with a tolerance of 0.000 to 0.010 inches
• 0.375 inches outside diameter in a round body profile
• Uncoated finish maintains dimensional accuracy and avoids coating buildup in tight clearances

Compatibility

Designed as an OEM-style replacement or service spacer for circuit board mounting applications requiring a number 8 screw, 1.5 inches overall length, and 0.375 inches outside diameter in inch-measurement systems.

Installation Notes

Installation is typically performed by a licensed electrician or qualified control panel technician. Always de-energize the equipment and follow lockout/tagout procedures before servicing any control board or panel assembly. Use the correct number 8 fastener to avoid bore damage, and verify the spacer length provides adequate clearance for the specific board and enclosure design. Refer to applicable NEC requirements for control panel assembly and wiring practices.