Electro Hardware MS1011M07F16F Circuit Board Spacer M4

Product Description

The ELECTRO HARDWARE MS1011M07F16F is a round, female unthreaded circuit board spacer designed for M4 screw applications in electronic and electrical assemblies. Manufactured from Grade 303 stainless steel with a bright uncoated finish, this spacer provides a rigid, corrosion-resistant standoff between a PCB and a mounting surface or adjacent board. The overall length is 6 mm (approximately 0.236 inches), the outside diameter is 6 mm (approximately 0.236 inches), and the inside diameter ranges from 4.2 mm to 4.8 mm (approximately 0.165 to 0.189 inches). It meets the QQ-S-763 fastener standard and weighs approximately 0.004 pounds. Electricians, HVAC technicians, and electronics assemblers use this spacer when precise board clearance and secure mechanical isolation are required in control panels and equipment enclosures.

This spacer is suited for use in control board assemblies, HVAC equipment enclosures, electrical panels, and other applications where a metric M4 fastener system is specified. Its stainless steel construction makes it appropriate for environments with moderate moisture exposure or where corrosion resistance is a priority. The female unthreaded body accepts an M4 screw passed through the bore, making it a pass-through standoff rather than a threaded insert. Typical use cases include securing PCBs in variable-frequency drives, thermostat subbase assemblies, motor control boards, and general industrial electronic enclosures.

Key Features

• Grade 303 stainless steel construction meets QQ-S-763 fastener standard for reliable corrosion resistance
• Female unthreaded round body accepts M4 screws through the bore for pass-through standoff mounting
• Overall length of 6 mm (approximately 0.236 inches) provides consistent board-to-surface clearance
• Inside diameter tolerance of 0.000 to 0.270 mm ensures compatibility with standard M4 fastener shanks
• Bright uncoated finish eliminates coating thickness variability in tight-tolerance assemblies
• Metric dimensioning throughout for use in metric-specified control board and enclosure applications

Compatibility

Designed as an OEM-style replacement or direct-use spacer for circuit board assemblies requiring an M4 screw, female unthreaded round standoff with a 6 mm overall length and 6 mm outside diameter.

Installation Notes

Installation is typically performed by electronics assemblers, licensed electricians, or HVAC technicians during control board mounting or enclosure assembly. Power down and de-energize all equipment before servicing any circuit board or control assembly. Use the appropriate M4 screw and torque driver for the application, following the equipment manufacturer's assembly specifications. Do not force an oversized fastener through the bore, as this can crack or displace the spacer and compromise board clearance.