Electro Hardware S293M07F16C Round Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S293M07F16C is a round, female unthreaded circuit board spacer designed to maintain precise standoff distance between a PCB and a mounting surface or adjacent board. Machined from Grade 303 stainless steel to the QQ-S-763 fastener standard, this spacer provides corrosion resistance and dimensional consistency in demanding environments. It accepts a No. 2 screw, measures 0.25 inches in overall length, and has an inside diameter of 0.089 inches with an outside diameter of 0.1875 inches. The bright uncoated finish leaves the base material exposed, making it suitable for applications where coating adhesion or conductivity concerns apply. Electronics assemblers and field technicians use this spacer in PCB mounting applications across HVAC control boards, electrical enclosures, and industrial equipment.

This spacer is suited for use in residential and commercial electronics assemblies where a No. 2 fastener is specified and precise board standoff is required. Typical applications include mounting control boards inside HVAC air handlers, furnace control modules, and electrical panel assemblies. Its small form factor and stainless steel construction make it a common choice in environments subject to moisture or temperature cycling. It is sold individually with a minimum order quantity of one unit.

Key Features

• Grade 303 stainless steel construction meets QQ-S-763 fastener standard for dimensional and material consistency
• Female unthreaded body accepts No. 2 screws for straightforward PCB standoff mounting
• 0.25 inch overall length with tight length tolerance of -0.005 to 0.005 inches for precise stack height control
• Inside diameter of 0.089 inches with tolerance of 0.000 to 0.010 inches
• Outside diameter of 0.1875 inches in a round body profile
• Bright uncoated finish preserves base material properties without added coating variables

Compatibility

Designed as an OEM-style replacement or new-installation component for circuit board standoff applications using No. 2 screw fasteners in inch-measurement assemblies.

Installation Notes

Installation should be performed by a qualified electronics assembler or field technician familiar with PCB mounting practices. De-energize all equipment and discharge any capacitors before handling control boards or installing spacers. Use a calibrated torque driver appropriate for No. 2 fasteners to avoid over-tightening, which can crack the PCB or deform the spacer bore. Follow the equipment manufacturer's assembly documentation and any applicable NEC or equipment-specific wiring enclosure requirements.