Gibraltar KN4X-5X-S3--S-- Tapered Knob Self-fixing Tpe

Product Description

The GIBRALTAR KN4X-5X-S3--S-- is a tapered machine knob with a self-fixing hole mount and a TPE overmolded soft-touch grip surface. Designed for tool-free or light-tool adjustment applications, this knob accepts multiple thread sizes including 1/4-20, 1/4-28, 5/16-18, 5/16-24, M6, and M8, making it highly adaptable across a wide range of equipment and panel installations. The overall length is 2 inches, the head diameter measures 1.38 inches, and the base diameter is 0.75 inches. The hole depth is 0.71 inches. The black TPE overmold provides grip comfort during frequent manual adjustments. Licensed tradespeople and equipment assemblers working on control panels, HVAC equipment, or industrial machinery will find this knob suited to standard fastener patterns.

This knob is appropriate for residential and commercial equipment applications where a hand-adjustable fastener point is required on a panel, enclosure, or machine frame. The self-fixing hole design allows the knob to grip the mating fastener without requiring a separate nut or locking hardware in many configurations. It is commonly installed on control panels, access doors, and adjustment mechanisms on HVAC units, electrical enclosures, and light industrial equipment. Its multi-thread compatibility reduces the need to stock multiple knob variants for different thread patterns on the same job.

Key Features

• Accepts 1/4-20, 1/4-28, 5/16-18, 5/16-24, M6, and M8 thread sizes in a single part
• Self-fixing hole mount — no separate nut required in typical applications
• TPE overmolded soft-touch grip for comfortable hand operation
• Tapered head profile with 1.38-inch head diameter and 0.75-inch base diameter
• Compact 2-inch overall length suits tight panel and enclosure clearances
• Black finish for standard equipment and enclosure aesthetics

Compatibility

Designed as a direct-fit hand knob for threaded fastener applications using 1/4-20, 1/4-28, 5/16-18, 5/16-24, M6, or M8 thread patterns on equipment panels, enclosures, and machine frames.

Installation Notes

Installation does not require specialized tools in most self-fixing hole applications — hand-tighten onto the mating fastener until seated. Verify thread compatibility between the knob hole and the mating stud or bolt before installation. Power down or de-energize any equipment before servicing panels or enclosures where this knob is being installed or replaced. Do not exceed the hand-tightening torque appropriate for TPE-overmolded plastic knobs, as over-torquing can damage the insert.