Electro Hardware P625M09F16-440 Hex Standoff 4-40 2in

Product Description

The ELECTRO HARDWARE P625M09F16-440 is a female hex circuit board standoff designed to create fixed spacing between printed circuit boards and mounting surfaces or between stacked boards. Machined from 18-8 and Grade 303 stainless steel with an anodized bright finish, this standoff meets the QQ-S-763 fastener standard for corrosion resistance and dimensional consistency. The hex body measures 1/4 inch across flats and accepts a 4-40 female thread on the mounting end. At 2 inches overall length, it provides reliable board-to-surface clearance in assemblies where vibration resistance and long service life matter. Electronics assemblers, panel builders, and electrical enclosure technicians install these in control panels, HVAC boards, and similar assemblies.

This standoff is suited for use in residential and commercial electrical and HVAC control panel assemblies where circuit boards must be elevated and secured at a fixed standoff height. The 4-40 thread size is a standard metric-compatible fastener size widely used in PCB mounting applications. The stainless steel construction and anodized finish make this standoff appropriate for environments with exposure to moisture or mild corrosives, including utility enclosures and outdoor-rated control boxes.

Key Features

• Female 4-40 threaded hex standoff for PCB mounting applications
• 2 inches overall length provides consistent board-to-surface clearance
• 18-8 and Grade 303 stainless steel construction for corrosion resistance
• 1/4 inch hex width across flats for standard hex driver installation
• Anodized bright finish meets QQ-S-763 fastener standard
• Length tolerance of -0.005 to 0.005 inches ensures precise stacking dimensions

Compatibility

Designed as an OEM-style replacement or new-install component for circuit board standoff applications using 4-40 female threaded fasteners in standard hex standoff configurations.

Installation Notes

Installation is performed by electronics assemblers or electricians during panel build or board replacement. Power down and de-energize the enclosure or control panel fully before working on mounted circuit boards. A standard hex driver or nutdriver sized for 1/4 inch across flats is required. Follow applicable NEC guidelines for enclosure assembly and ensure mating screws match the 4-40 thread specification.