Electro Hardware S1407-M07-F16-K Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1407-M07-F16-K is a round, female unthreaded circuit board spacer machined from 18-8 Grade 303 stainless steel. It provides a fixed standoff between a PCB and its mounting surface, keeping the board elevated, aligned, and protected from contact with enclosures or adjacent components. With an overall length of 1.25 inches, an inside diameter of 0.257 inches, and an outside diameter of 0.500 inches, it accepts a 1/4 inch screw and delivers a precise, corrosion-resistant mount point. This spacer is used by electricians, electronics technicians, and control board service professionals working on industrial panels, HVAC control assemblies, and similar low-voltage circuit board installations.

This spacer suits applications where stainless steel construction is preferred for corrosion resistance or where uncoated fastener hardware is required to meet specification. Typical installation scenarios include mounting control boards inside HVAC air handlers, refrigeration equipment electrical panels, pool equipment controller enclosures, and general industrial enclosure assemblies. The 1/4 inch thread size and 1.25 inch standoff height make it appropriate for moderate-clearance PCB mounting where board isolation from the chassis is required.

Key Features

• Machined from 18-8 Grade 303 stainless steel for corrosion resistance and durability
• Female unthreaded bore accepts a 1/4 inch screw for straightforward PCB fastening
• Overall length of 1.25 inches provides fixed standoff clearance between board and mounting surface
• Outside diameter of 0.500 inches and inside diameter of 0.257 inches with tight tolerances (ID tolerance 0.000 to 0.010 inches, length tolerance -0.005 to 0.005 inches)
• Uncoated finish meets QQ-S-763 fastener standard
• Round body shape for consistent, repeatable seating on flat mounting surfaces

Compatibility

Designed as an OEM-style replacement or direct-install round circuit board spacer for 1/4 inch screw PCB mounting applications requiring a 1.25 inch standoff in stainless steel construction.

Installation Notes

Installation is performed by qualified electricians or electronics technicians. De-energize and lock out all power to the control panel or equipment before removing or installing any circuit board hardware. Use appropriately sized hand tools and avoid overtightening fasteners through the spacer bore, as the female unthreaded design relies on the mating screw for clamping force. Follow applicable NEC and equipment manufacturer guidelines when working inside energized enclosures.