Gibraltar G10-2890-C Knurled Fluted Knob 2.5in Plastic

Product Description

The GIBRALTAR G10-2890-C is a knurled fluted knob with a female insert, designed for use in industrial, mechanical, and trade applications where a secure, hand-operable fastening solution is needed. The knob features a 2.5-inch head diameter and accepts a 1/2-13 threaded insert, making it compatible with standard coarse-thread fastener configurations. Constructed from plastic, this knob is lightweight and suited for panels, enclosures, jigs, fixtures, and equipment where tool-free adjustment or removal is required. It is installed by maintenance technicians, machinists, and trade professionals working with threaded assemblies.

This knob is commonly used in light industrial and commercial settings where repeated hand adjustment is needed without tooling. The knurled and fluted outer surface provides a firm grip even in low-clearance or gloved-hand conditions. Typical applications include control panel doors, machine guards, access covers, and fixture assemblies where quick-release or frequent adjustment is part of the workflow.

Key Features

• 2.5-inch head diameter for confident hand grip and torque
• Female insert design accepts 1/2-13 threaded fasteners
• Knurled and fluted outer profile improves grip in varied conditions
• Plastic construction keeps weight low and resists corrosion
• Tool-free installation and removal for high-frequency adjustment applications

Compatibility

Designed as a standard replacement or new-installation knob for assemblies using 1/2-13 threaded hardware in industrial, mechanical, and trade equipment applications.

Installation Notes

Installation is performed by threading the knob onto a compatible 1/2-13 male stud or bolt by hand. Ensure the mating thread is clean and free of debris before installation. Do not use power tools to drive this knob, as over-torquing can crack the plastic body. Verify the thread engagement depth is sufficient for the load requirements of the application before placing the assembly back in service.