Electro Hardware S293M04F16E Round Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S293M04F16E is a round, female unthreaded circuit board spacer designed to maintain precise separation between a PCB and a mounting surface or adjacent board. Sized at 0.25 inches overall length with a 0.1875-inch outside diameter and a 0.116-inch inside diameter, this spacer is machined from Aluminum Grade T3 per fastener standard QQ-A-225A Comp 2. It is left uncoated with a bright finish and accepts a 4 screw. Electrical and electronics technicians use these spacers during PCB assembly and panel mounting to provide mechanical standoff clearance and prevent short circuits caused by unintended board contact.

This spacer is suited for use in residential and commercial electronic assemblies, control panels, and circuit board mounting applications where a small-diameter, lightweight aluminum standoff is required. The female unthreaded body style allows a fastener to pass through while holding the board at a fixed standoff height. Its compact outside diameter of 3/16 inches makes it appropriate for densely populated boards where space between mounting points is limited. Electronics assemblers, panel builders, and field technicians working on control board replacements in HVAC, industrial, or similar equipment will find this a standard-fit option.

Key Features

• Aluminum Grade T3 construction per QQ-A-225A Comp 2 for lightweight, corrosion-resistant standoff performance
• Female unthreaded body style accepts a 4 screw through the 0.116-inch inside diameter bore
• 0.25-inch overall length with a tight length tolerance of -0.005 to 0.005 inches for consistent board standoff height
• Inside diameter tolerance of 0.000 to 0.010 inches ensures reliable fastener fit
• Bright uncoated finish maintains dimensional accuracy without added coating buildup
• Round body shape for straightforward installation in standard PCB mounting hole patterns

Compatibility

Designed as an OEM-style replacement or new-installation spacer for circuit board mounting applications requiring a 4 screw, female unthreaded aluminum standoff with a 0.25-inch overall length.

Installation Notes

Installation is performed by electronics technicians or panel assemblers. De-energize all equipment fully before handling or mounting circuit boards. Insert the spacer into the PCB mounting hole and secure with the appropriate 4 fastener. Avoid over-torquing, as the unthreaded female body is not designed to resist rotational force from threaded fasteners acting on the spacer body itself.