Gibraltar G10-2830BG Lobed Knob 2 Inch 4-point Phenolic

Product Description

The GIBRALTAR G10-2830BG is a 4-point lobed knob constructed from phenolic with a gloss black finish. With a 2-inch head diameter and a 1/2-13 threaded hole, this knob provides a secure, hand-operable grip for adjusting, clamping, or locking threaded fasteners on machinery, equipment panels, and fixtures. The phenolic body offers good resistance to heat and mechanical wear, making it suitable for industrial and light-duty trade applications. An overall height of 1.125 inches and a hub diameter of 0.875 inches keep the profile compact. Licensed trades and maintenance professionals use this type of hardware for tool-free adjustments in accessible control and mounting locations.

This lobed knob is suited for use on machine tools, control panels, jigs, fixtures, and similar equipment where frequent manual adjustment is needed without tooling. The 1/2-13 thread accommodates standard coarse-thread fasteners common in industrial and mechanical assembly. A thread engagement depth of 0.625 inches provides adequate hold for typical clamping and positioning tasks. This part is sold individually and is commonly specified in production and maintenance environments where ergonomic hand knobs replace hex hardware in accessible locations.

Key Features

• 4-point lobed profile for confident grip during hand tightening and loosening
• Phenolic construction resists heat and provides durability in mechanical service
• 2-inch head diameter delivers effective leverage without tooling
• 1/2-13 threaded hole matches standard coarse-thread fastener sizes
• Gloss black finish for clean appearance on panel and fixture installations
• Compact 1.125-inch overall height fits tight clearance applications

Compatibility

Designed as a standard lobed hand knob for use with 1/2-13 coarse-thread fasteners on machinery, control panels, jigs, and equipment fixtures requiring tool-free manual adjustment.

Installation Notes

Install by threading onto a 1/2-13 stud or bolt by hand. De-energize or lock out any equipment before replacing hardware on live machinery per applicable OSHA lockout/tagout procedures. Verify thread engagement depth does not exceed 0.625 inches available in the hub. Do not use impact tools on phenolic knobs, as impact loading may crack the body.