Gibraltar G10-0057 Female Insert Lever Knob 3/8-16

Product Description

The GIBRALTAR G10-0057 is a female insert lever knob designed for use with 3/8-16 threaded fasteners and control shafts. The knob features a 1-15/16 inch head diameter, a 27/32 inch hub diameter, and a 1/2 inch hole depth, making it suitable for secure, tool-free adjustment on machinery, equipment panels, and control assemblies. Standing 1-7/16 inches high, this lever knob provides a positive grip surface for manual operation in both production and service environments. Technicians and assemblers working on industrial equipment, HVAC controls, and mechanical panels will find this knob a straightforward hardware replacement or upgrade.

This lever knob is suited for use in light industrial, mechanical, and equipment panel applications where a reliable, hand-operated fastening point is needed. It is appropriate for residential and commercial equipment controls, machinery adjustment points, and panel assemblies that accept 3/8-16 threaded inserts. The female insert mount style allows direct installation onto a threaded stud or bolt without additional hardware.

Key Features

• Female insert mount accepts 3/8-16 threaded studs or bolts
• 1-15/16 inch head diameter for confident hand grip
• 27/32 inch hub diameter for stable seating on mounting surface
• 1/2 inch hole depth accommodates standard stud engagement
• 1-7/16 inch overall height suits typical panel clearance requirements
• Compact lever knob profile for use in space-constrained equipment enclosures

Compatibility

Designed as an OEM-style replacement or direct-fit lever knob for equipment panels, machinery controls, and mechanical assemblies using 3/8-16 threaded fasteners with a female insert mount configuration.

Installation Notes

Installation requires no special tools — thread the knob onto the existing 3/8-16 stud and hand-tighten to secure. Ensure the equipment or panel is de-energized before servicing any control knobs on electrical or HVAC equipment. Verify stud thread engagement does not exceed the 1/2 inch hole depth to avoid bottoming out. This hardware is typically installed by mechanical assemblers, HVAC technicians, or equipment service professionals.