Electro Hardware S789-M07-F16-G Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S789-M07-F16-G is a round, female unthreaded circuit board spacer machined from 18-8 Grade 303 stainless steel to the QQ-S-763 fastener standard. It accepts a Number 6 screw and measures 0.1875 inches overall length, 0.141 inches inside diameter, and 0.3125 inches outside diameter. The uncoated finish leaves the base material fully exposed, which is appropriate where corrosion resistance of the alloy itself is sufficient. Electricians, electronics technicians, and control-board installers use these spacers to maintain consistent standoff clearance between a PCB and its mounting surface inside control panels, HVAC equipment, and similar enclosures.

This spacer is suited for use in residential and light commercial control panels, printed circuit board assemblies, and electronic enclosures where a Number 6 fastener pattern is specified. Its compact 0.1875-inch length provides minimal board-to-surface clearance, making it appropriate for tight-profile PCB mounting situations where a longer standoff would not fit. The stainless steel construction handles moderate humidity and temperature cycling common in HVAC and electrical enclosures.

Key Features

• Female unthreaded body accepts a Number 6 screw for secure PCB mounting
• 18-8 Grade 303 stainless steel construction provides corrosion resistance without a coating
• Meets QQ-S-763 fastener standard for dimensional and material compliance
• Overall length of 0.1875 inches suits low-profile circuit board standoff applications
• Inside diameter tolerance of 0.000 to 0.010 inches and length tolerance of -0.005 to 0.005 inches ensure consistent fitment
• Round body shape allows straightforward installation and removal with standard tools

Compatibility

Designed as a standard Number 6 screw round circuit board spacer for use in PCB assemblies and control enclosures that require a female unthreaded standoff measuring 0.1875 inches in length and 0.3125 inches outside diameter.

Installation Notes

Installation should be performed by a qualified technician following applicable electrical codes, including NEC guidelines where relevant. De-energize all equipment and discharge any capacitors before handling circuit boards or installing spacers. Use care not to overtighten the mating Number 6 screw, as the unthreaded bore relies on the fastener for clamping force only. Inspect the spacer seating surface for debris before installation to maintain proper board alignment.