Electro Hardware S1339-M07-F16-K Circuit Board Spacer

Product Description

The ELECTRO HARDWARE S1339-M07-F16-K is a round, female unthreaded circuit board spacer machined from 18-8 and 303 grade stainless steel to the QQ-S-763 fastener standard. It accepts a 1/4 inch screw, measures 3/16 inches (0.1875 inches) overall length, and carries an inside diameter of 0.257 inches with an outside diameter of 0.5 inches. The uncoated finish preserves the natural corrosion resistance of the stainless alloy. Electricians, panel builders, and control board technicians use this type of spacer to maintain precise standoff clearance between a circuit board and its mounting surface, preventing shorts and managing airflow across board components.

This spacer is suited for use in control panel assemblies, HVAC control board mounting applications, electrical enclosures, and light commercial equipment where a reliable stainless standoff is required. Its compact 3/16 inch overall length makes it appropriate for tight board-to-chassis clearances. The inch-system dimensions and 1/4 inch thread compatibility align with standard North American fastener sizing commonly found in residential and light commercial equipment builds and service replacements.

Key Features

• 18-8 and 303 grade stainless steel construction meets QQ-S-763 fastener standard
• Female unthreaded body accepts 1/4 inch screw for straightforward mounting
• Overall length of 3/16 inches (0.1875 inches) with a tight length tolerance of -0.005 to 0.005 inches
• Inside diameter of 0.257 inches with an ID tolerance of 0.000 to 0.010 inches
• Outside diameter of 0.5 inches for consistent standoff footprint
• Uncoated finish retains stainless corrosion resistance without added coating thickness

Compatibility

Designed as an OEM-style replacement or service spacer for circuit board mounting applications requiring a 1/4 inch screw, 3/16 inch overall length, and 0.5 inch outside diameter in stainless steel.

Installation Notes

Installation is typically performed by electricians or control board technicians during panel assembly or board replacement service. De-energize all circuits and follow applicable NEC guidelines before handling any control board or panel component. Use the correct 1/4 inch fastener to avoid damaging the unthreaded female bore. Verify overall length and inside diameter clearances against the board and chassis specifications before final assembly.