Electro Hardware S841-MO4-F16-G Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S841-MO4-F16-G is a round, female unthreaded aluminum circuit board spacer designed to create precise standoff clearance between a PCB and a mounting surface. It accepts a number 6 screw and measures 1 inch overall length with an inside diameter of 0.141 inches and an outside diameter of 0.3125 inches (5/16 inch). The body is machined from T-3 grade aluminum to the QQ-A-225A Comp 2 fastener standard, left uncoated. This spacer is installed by electronics technicians, field service engineers, and board-level repair professionals wherever consistent PCB standoff height and hardware standardization matter.

This spacer suits residential and commercial control board assemblies, HVAC equipment PCBs, electrical panel sub-assemblies, and general industrial electronics mounting applications. The round body profile and female unthreaded bore make it straightforward to stack or fasten in tight board layouts. Its compact outside diameter keeps it compatible with dense component placement zones where larger hex standoffs would interfere.

Key Features

• Female unthreaded bore sized for number 6 screw hardware
• 1 inch overall length with tight length tolerance of -0.005 to 0.005 inches
• 0.141 inch inside diameter with bore tolerance of 0.000 to 0.010 inches
• 0.3125 inch (5/16 inch) outside diameter round body profile
• T-3 grade aluminum construction, uncoated, meets QQ-A-225A Comp 2 standard
• Inch measurement system; sold individually

Compatibility

Designed as a standard OEM-style circuit board spacer for PCB mounting applications requiring a number 6 screw, 1 inch standoff height, and a round aluminum body in the inch measurement system.

Installation Notes

Installation is performed by electronics technicians or field service professionals during PCB assembly or board replacement. Power down and de-energize all equipment before handling circuit boards or installing standoff hardware. Use appropriately sized number 6 fasteners and avoid over-torquing, which can crack the board or deform the spacer bore. Follow applicable equipment manufacturer guidelines and NEC requirements when working on control assemblies inside electrical or HVAC equipment enclosures.