Gibraltar BBK-046-G Brass Ball Knob 1.38 in Threaded Hole

Product Description

The GIBRALTAR BBK-046-G is a brass ball knob designed for use with threaded-hole mounting applications. With a diameter of 1.38 inches and a smooth grip surface, this knob provides a secure, comfortable handhold for manual adjustment of valves, machine controls, and equipment panels. The natural brass finish offers durability and corrosion resistance in typical industrial and mechanical environments. Manufactured to a 7/16-20 thread specification with a hole depth of 0.625 inches, it suits precision-fit installations where dimensional consistency matters. Electricians, machinists, plumbers, and equipment technicians commonly specify this type of hardware for panel and valve assemblies.

This ball knob is suited for use in light industrial, commercial, and mechanical environments where a compact, threaded-mount control knob is required. Typical applications include manual valve stems, machine adjustment screws, jig and fixture controls, and equipment enclosure hardware. The 7/16-20 thread size fits a range of standard threaded stems and control shafts found in HVAC equipment, plumbing assemblies, and general industrial machinery. The smooth grip surface keeps the profile clean and snag-free in tight panel environments.

Key Features

• Threaded-hole mount with 7/16-20 thread size for positive, rattle-free engagement
• 1.38-inch diameter brass body for a firm, balanced grip on manual controls
• 0.625-inch hole depth accommodates standard stem lengths without bottoming out prematurely
• Smooth grip surface suits clean-room, panel, and valve-stem applications
• Natural brass finish resists corrosion in typical mechanical service environments
• Compact form factor fits tight panel and equipment enclosure layouts

Compatibility

Designed as an OEM-style replacement or direct-fit addition for threaded-stem assemblies requiring a 7/16-20 threaded-hole ball knob in brass construction.

Installation Notes

Installation requires no special tools beyond hand-tightening onto a compatible threaded stem. Confirm the mating stem thread pitch matches 7/16-20 before installation to avoid cross-threading. Power down or de-energize any associated equipment and relieve system pressure before removing or installing knobs on active valve stems. Do not overtighten onto soft stem materials, as brass threads can gall if forced against harder alloys.