Electro Hardware P285M09F16256 Hex Standoff 2-56 Ss

Product Description

The ELECTRO HARDWARE P285M09F16256 is a female hex circuit board standoff designed to create precise spacing and secure mounting points between printed circuit boards and chassis surfaces. Machined from 303 stainless steel with a plain (bright, uncoated) finish, this standoff features a 2-56 female thread, an overall length of 0.125 inches, and a hex body width across flats of 0.1875 inches. The thread depth runs the full 0.125-inch body length, making it fully threaded. Meeting the QQ-S-763 stainless steel specification, it is suited for applications requiring corrosion resistance in compact electronic assemblies. Electronics assemblers, field service technicians, and panel builders install these as part of PCB mounting and standoff stacking configurations.

This standoff is used in residential and commercial electronic control assemblies, HVAC control boards, industrial automation panels, and general-purpose PCB mounting applications where a small-format, corrosion-resistant fastener is required. Its 2-56 thread size is a standard fine-pitch inch-series thread commonly found in compact control board and low-voltage electronics enclosures. It is appropriate wherever a female-threaded hex standoff of this size is called out in an assembly drawing or BOM.

Key Features

• 2-56 female thread, fully threaded through the 0.125-inch body length
• Hex body shape with 0.1875-inch width across flats for wrench or nut driver engagement
• 303 stainless steel construction meets QQ-S-763 specification for corrosion resistance
• Plain (bright, uncoated) finish — no plating to interfere with tight-tolerance assemblies
• Length tolerance held to plus or minus 0.005 inches for consistent PCB stack height
• Compact form factor suited for high-density board layouts

Compatibility

Designed as an OEM-style replacement or service fastener for circuit board standoff applications requiring a 2-56 female hex standoff with a 0.125-inch overall length.

Installation Notes

Install using a nut driver or hex wrench sized for a 3/16-inch across-flats hex body. Power down and de-energize all control boards and panels before removing or installing standoffs. Avoid overtightening on PCB mounting holes, as excessive torque can crack board substrate material. Follow applicable assembly drawings and IPC standards for PCB hardware installation.