Gibraltar 1RM8B943A8Z002G Fluted Knob 1.87 in Head

Product Description

The GIBRALTAR 1RM8B943A8Z002G is a fluted knob with a threaded stem and a 1.87-inch head diameter. It is constructed from thermoplastic elastomer, a material that provides a firm yet slightly flexible grip surface suitable for repeated manual adjustment. This type of knob is used in equipment panels, control assemblies, and mechanical fixtures where a secure hand-tightened fastening point is required. Technicians working on HVAC equipment cabinets, control enclosures, electrical panels, and similar trade-service hardware install this style of knob as a replacement or new-installation component. It weighs 0.2 pounds and ships in a quantity of one per package.

This fluted knob is suited for light-duty manual adjustment applications across residential and commercial equipment. It threads onto a compatible stem and is intended for use on control panels, access doors, equipment housings, and mechanical assemblies where tool-free hand adjustment is the standard service method. The thermoplastic elastomer construction resists oils and common shop contaminants, making it appropriate for mechanical service environments encountered by HVAC, electrical, and plumbing trade professionals.

Key Features

• 1.87-inch head diameter provides adequate grip surface for manual operation
• Thermoplastic elastomer material offers flexibility, oil resistance, and durability
• Threaded stem design allows direct installation onto compatible threaded hardware
• Lightweight at 0.2 pounds, suitable for panel and enclosure applications
• Sold individually, one per package

Compatibility

Designed as an OEM-style replacement or new-installation fluted knob for threaded-stem applications on equipment panels, control housings, and mechanical assemblies requiring a 1.87-inch head knob.

Installation Notes

Installation is performed by hand-threading the knob onto a compatible threaded stem — no special tools are required for most applications. Verify thread pitch and stem diameter match before installation. Ensure the equipment or panel is de-energized before servicing any associated electrical enclosure or control assembly. Do not overtighten, as thermoplastic elastomer components can deform under excessive torque.