Electro Hardware P593M04F16-440 Female Standoff 4-40

Product Description

The ELECTRO HARDWARE P593M04F16-440 is a round female standoff designed for use in panel assemblies, electronic enclosures, and structural spacer applications where a fully threaded female thread form is required on both ends. Machined from 6061-T3 aluminum to the QQ-A-225A Comp 2 standard, this standoff measures 1.5 inches overall length with a 0.25 inch outside diameter and a 1 inch thread depth. The bright anodized finish provides light corrosion resistance and a clean appearance. It accepts a 4-40 thread and is sold individually.

This standoff is used in light fabrication, electronics mounting, and instrument panel assembly work. It is well suited for stacking PCBs, securing access panels, or creating fixed offsets between structural layers in control boxes and enclosures. Installers working in HVAC controls, electrical panels, or OEM equipment assembly will find this size appropriate for fine-thread, low-load spacer applications. The 4-40 thread size is common in miniature and light-duty electronic hardware configurations.

Key Features

• Fully threaded female 4-40 thread form, 1 inch thread depth
• 1.5 inch overall length with tight length tolerance of -0.005 to 0.005 inches
• 0.25 inch outside diameter, round body profile
• Aluminum construction, material grade T-3, meets QQ-A-225A Comp 2 standard
• Bright anodized finish for light corrosion resistance
• Sold as individual units, minimum order quantity of 1

Compatibility

Designed as a standard inch-series female standoff for use in electronic enclosures, control panels, and equipment assemblies requiring a 4-40 threaded spacer with a 1.5 inch OAL and 0.25 inch OD.

Installation Notes

Installation is typically performed by electronics assemblers, electrical technicians, or mechanical fabricators. Power down and de-energize any assembly before installing or removing standoffs in live panels. Use a properly sized hex driver or wrench matched to the outside diameter to avoid rounding the body. Do not overtighten mating fasteners, as the aluminum thread form can strip under excessive torque.