Electro Hardware MS1027M07F16F Circuit Board Spacer M4

Product Description

The ELECTRO HARDWARE MS1027M07F16F is a round, female unthreaded circuit board spacer designed to create precise standoff gaps between PCBs and mounting surfaces. Sized for M4 screws, it measures 14 mm overall length with an outside diameter of 6 mm and an inside diameter ranging from 4.2 mm to 4.8 mm. Machined from Grade 303 stainless steel with a bright uncoated finish, it meets the QQ-S-763 fastener standard. Electricians, electronics technicians, and panel builders use this spacer to maintain consistent board clearance and prevent electrical contact between PCB layers and enclosure surfaces.

This spacer is suited for use in control panels, electrical enclosures, and electronic assemblies where corrosion resistance and dimensional precision are required. The stainless steel construction makes it appropriate for both indoor and light-duty industrial environments. Its metric M4 sizing fits standard metric fastener layouts common in commercial control boards, HVAC equipment electronics, and industrial automation assemblies.

Key Features

• Grade 303 stainless steel construction per QQ-S-763 fastener standard
• Bright uncoated finish — no coating buildup to affect fit or conductivity
• M4 screw compatibility with 4.2 mm to 4.8 mm inside diameter range
• 6 mm outside diameter in a compact round body profile
• Length tolerance of -0.13 mm to 0.13 mm for consistent stack height
• Female unthreaded design for pass-through fastener configurations

Compatibility

Designed as a metric M4 female unthreaded round circuit board spacer for use in PCB mounting applications requiring a 14 mm standoff height and 6 mm outside diameter footprint.

Installation Notes

Installation is performed by electronics technicians or electricians during panel assembly or PCB mounting. De-energize all circuits and discharge any capacitors before working inside control enclosures. Use calibrated torque tools appropriate for M4 metric fasteners to avoid deforming the unthreaded bore. Verify standoff height against PCB layout requirements before final assembly.