

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The GIBRALTAR G10-0091-B is a female insert lever knob designed for use as a manual control handle on machinery, equipment panels, and industrial assemblies. The knob features a 1.625-inch head diameter and a 0.875-inch hub diameter, with a 3/8-16 threaded female insert for secure fastening to a threaded shaft or stud. At 2.5 inches in height with a 0.5-inch hole depth, it provides a comfortable grip and reliable actuation in light to moderate duty applications. Installed by machinists, equipment assemblers, and maintenance technicians, this knob is a standard hardware component in both OEM builds and field service.
The G10-0091-B is suited for use on manual adjustment mechanisms, valve handles, door latches, and control panel assemblies across industrial, HVAC, and mechanical service environments. Its female insert mount allows it to thread directly onto existing male-threaded shafts sized to 3/8-16, making it a straightforward drop-in replacement or upgrade in both new installations and retrofit applications. This knob is appropriate for indoor use in dry to light-duty environments where a firm manual grip point is needed.
Designed as a standard female insert lever knob compatible with 3/8-16 threaded shafts and studs, suitable for equipment panels, machinery controls, and general industrial hardware applications.
Installation requires no special tools beyond hand tightening onto a matching 3/8-16 male-threaded shaft. Ensure the mating shaft thread is clean and free of debris before threading the knob on. Do not exceed the manual grip torque appropriate for the knob material and application. Confirm equipment is de-energized or depressurized before servicing any assembly this knob controls.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!