Gibraltar KNH3-HEX5S3A-- Star Knob 5 Point Polypropylene

Product Description

The GIBRALTAR KNH3-HEX5S3A-- is a 5-point star knob constructed from polypropylene with a matte black finish. It features a 1.75-inch head diameter and a 0.99-inch overall height, making it a compact, lightweight fastening component suited for hand-adjustment applications. The knob accepts a 3/8-inch stem and delivers a comfortable grip surface across all five points. Weighing 0.4 pounds, it is designed for repeated manual operation in equipment panels, enclosures, jigs, fixtures, and other industrial or mechanical assemblies. Technicians and tradespeople use this type of knob anywhere tool-free adjustment or clamping is required.

This star knob is appropriate for use in light-duty to medium-duty hand-tightening applications across HVAC equipment panels, electrical enclosures, machine guards, and shop fixtures. The polypropylene construction resists corrosion and is suitable for dry and mildly humid environments. Its 3/8-inch hole size fits standard threaded inserts and bolts commonly found in fabricated steel and aluminum assemblies, making it a practical replacement or upgrade for worn or missing knobs on existing equipment.

Key Features

• 5-point star profile provides secure grip for hand tightening without tools
• 1.75-inch head diameter for comfortable thumb-and-finger operation
• 3/8-inch hole size fits standard threaded fasteners
• Polypropylene construction resists corrosion in dry and mildly humid environments
• Matte black finish reduces glare and conceals surface wear
• Compact 0.99-inch overall height suits low-clearance panel and fixture applications

Compatibility

Designed as a general-purpose hand knob replacement for equipment panels, enclosures, jigs, and fixtures using 3/8-inch threaded fasteners.

Installation Notes

This knob is installed by a technician or mechanical assembler by threading it onto an existing 3/8-inch stud or bolt by hand. Power down or de-energize any associated equipment before accessing internal panels or enclosures. No special tools are required for installation. Verify thread engagement is sufficient to achieve the clamping force needed for the application before returning equipment to service.