Electro Hardware S285M04F16E Round Board Spacer 4 Screw

Product Description

The ELECTRO HARDWARE S285M04F16E is a round, female unthreaded circuit board spacer designed to create precise standoff clearance between a PCB and a mounting surface. Sized for a 4 screw fastener, this spacer measures 0.125 inches in overall length, 0.116 inches inside diameter, and 0.1875 inches outside diameter. Machined from Aluminum Grade T3 per fastener standard QQ-A-225A Comp 2, it is supplied in a bright, uncoated finish. Electronics assembly technicians and PCB rework specialists use this spacer where consistent board standoff and secure mechanical positioning are required.

This spacer is suited for light-duty electronic assembly applications where a 4 screw pattern is specified and precise length tolerances are critical. The female unthreaded body accepts a mating screw from both sides, making it appropriate for through-hole mounting configurations on control boards, relay panels, and general electronic chassis assemblies. The compact outside diameter of 0.1875 inches accommodates tight board layouts with limited real estate around mounting holes.

Key Features

• Female unthreaded round body for through-hole circuit board standoff mounting
• 0.125 inches overall length with a length tolerance of -0.005 to 0.005 inches for consistent stack height
• Inside diameter of 0.116 inches with a tolerance of 0.000 to 0.010 inches for secure 4 screw fit
• Outside diameter of 0.1875 inches suits tight PCB mounting patterns
• Aluminum Grade T3 construction per QQ-A-225A Comp 2 for lightweight, corrosion-resistant performance
• Bright uncoated finish — no coating contamination risk in sensitive electronic environments

Compatibility

Designed as a standard OEM-style round circuit board spacer for 4 screw PCB mounting applications in electronic assemblies requiring a 0.125 inch standoff height.

Installation Notes

Electronic assembly technicians should de-energize and discharge all circuits before installing or replacing board spacers. Use appropriate torque-limiting drivers to avoid stripping the mating 4 screw hardware. Confirm inside diameter clearance against fastener shank diameter before assembly. Minimum order quantity is 25 units per order.