Electro Hardware MS1023M07F16F Round Board Spacer M4

Product Description

The ELECTRO HARDWARE MS1023M07F16F is a round, female unthreaded circuit board spacer designed to create precise standoff clearance between a PCB and a mounting surface or between stacked boards. Machined from Grade 303 stainless steel and left uncoated with a bright finish, this spacer meets fastener standard QQ-S-763. It accepts an M4 screw, measures 12 mm (0.472 inches) in overall length, and features an outside diameter of 6 mm (0.236 inches) with an inside diameter ranging from 4.2 mm to 4.8 mm (0.165 to 0.189 inches). It is suited for electronics assembly and control board mounting in HVAC, electrical, and industrial equipment.

This spacer is used wherever a durable, corrosion-resistant standoff is needed in PCB assemblies, enclosures, or control panel builds. Typical applications include securing circuit boards inside HVAC control boxes, electrical enclosures, and industrial equipment panels where M4 hardware is specified. The stainless steel construction makes it appropriate for environments with moderate moisture exposure. The unthreaded female body accepts a passing M4 screw, allowing the installer to fasten boards without tapping a threaded insert directly into a chassis.

Key Features

• Grade 303 stainless steel construction meets QQ-S-763 fastener standard
• Female unthreaded body accepts M4 screws for straightforward board mounting
• 12 mm (0.472 inches) overall length provides consistent standoff clearance
• 6 mm (0.236 inches) outside diameter with 4.2 to 4.8 mm inside diameter range
• Bright uncoated finish maintains dimensional tolerances without coating buildup
• Round body shape for standard PCB standoff hole patterns

Compatibility

Designed as an OEM-style replacement or new-build component for circuit board assemblies requiring an M4 female unthreaded round spacer with a 6 mm outside diameter and 12 mm overall length.

Installation Notes

Installation is typically performed by electronics technicians or electricians assembling or servicing control boards. De-energize all circuits and discharge any stored capacitance before handling PCBs or fasteners in a live enclosure. Use appropriately sized M4 hardware and torque fasteners per the board or enclosure manufacturer specifications. Avoid over-tightening, which can crack PCB mounting pads or distort the spacer body.