Electro Hardware P553M10F21-632 Round Female Standoff

Product Description

The ELECTRO HARDWARE P553M10F21-632 is a round female standoff designed to create fixed spacing between panels, PCBs, enclosures, or structural components in electronic and mechanical assemblies. It features a 6-32 internal thread, a 7/8-inch overall length, and a 1/4-inch outside diameter. The standoff is fully threaded to a 1-inch thread depth, allowing fasteners to engage the full length of the bore. Manufactured from Grade 2 steel with a zinc-plated finish that meets ASTM B633 Type 1 and QQ-S-633 standards, this part is suited for indoor assemblies where moderate corrosion resistance is required. Electricians, panel builders, and mechanical assemblers working on control cabinets, enclosures, and rack-mount equipment are the primary installers.

This standoff is commonly used in electrical enclosures, control panels, electronics chassis, and light-duty structural assemblies requiring precise component spacing. Its inch-system dimensioning and 6-32 thread size make it compatible with standard machine screw hardware widely used in North American electrical and electronics work. The round body profile and compact 1/4-inch OD allow installation in tight board layouts and multi-board stack-up configurations where space between mounting points is limited.

Key Features

• 6-32 internal thread, fully threaded to 1-inch depth for maximum fastener engagement
• 7/8-inch overall length with a length tolerance of -0.005 to 0.005 inches for precise stack-up control
• 1/4-inch outside diameter round body profile fits tight enclosure and PCB layouts
• Grade 2 steel construction provides solid mechanical strength for panel and chassis assemblies
• Zinc-plated finish meets ASTM B633 Type 1 and QQ-S-633 standards for corrosion protection
• Inch-system dimensioning compatible with standard North American machine screw hardware

Compatibility

Designed as an OEM-style replacement or direct-use component for electronic enclosures, control panels, and mechanical assemblies requiring 6-32 threaded female standoffs in inch-system configurations.

Installation Notes

Installation is typically performed by panel builders, electronics assemblers, or licensed electricians during enclosure or chassis assembly. Power down and de-energize any associated equipment before installing or removing standoffs in live panels. Use a hex driver or wrench sized to the standoff body to prevent deformation of the zinc-plated finish during torquing. Do not overtighten mating screws, as Grade 2 steel threads can be stripped if excessive force is applied.