Electro Hardware S301M07F16C Circuit Board Spacer SS303

Product Description

The ELECTRO HARDWARE S301M07F16C is a round, female unthreaded circuit board spacer machined from Grade 303 stainless steel to QQ-S-763 fastener standards. It measures 0.375 inches overall length with a 0.1875-inch outside diameter and a 0.089-inch inside diameter, sized for a Number 2 screw. The uncoated bright finish leaves the stainless steel surface exposed, which suits environments where corrosion resistance matters without adding coating thickness. This type of spacer is installed by electronics assemblers, HVAC control-board technicians, and electrical trade professionals who need precise standoff clearance between a PCB and a mounting surface or between stacked boards.

This spacer is suited for residential and light commercial control board assemblies, panel-mount PCB applications, and general electronic chassis work. Its compact 3/16-inch outside diameter and short 0.375-inch length make it appropriate for tight board layouts where standard larger standoffs would interfere with adjacent components. The female unthreaded bore accepts a Number 2 fastener passed through from the board side, providing a clean compression fit without threading into the spacer body.

Key Features

• Grade 303 stainless steel construction per QQ-S-763 fastener standard
• Female unthreaded bore sized for Number 2 screw applications
• Overall length of 0.375 inches with tight length tolerance of -0.005 to 0.005 inches
• 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 dimensional accuracy and corrosion resistance

Compatibility

Designed as an OEM-style replacement or new-install spacer for circuit board assemblies requiring a Number 2 screw, round body, female unthreaded standoff in stainless steel.

Installation Notes

Installation is performed by qualified electronics or electrical technicians. De-energize all circuits and discharge any capacitors before handling control boards or PCB assemblies. Use calibrated fastener drivers appropriate for Number 2 hardware to avoid deforming the bore or cracking the board substrate. Follow applicable NEC guidelines and equipment manufacturer procedures when reinstalling control boards in HVAC or electrical panel applications.