Gibraltar PKG-380-G Lobed Knob 40mm 7-point M8x1.25 Tpe

Product Description

The GIBRALTAR PKG-380-G is a 7-point lobed knob designed for manual fastening and adjustment applications across industrial, mechanical, and trade equipment. The knob features a 40 mm head diameter molded from thermoplastic elastomer (TPE), which provides a firm yet comfortable grip without tools. It threads onto an M8 x 1.25 stem with a 30 mm thread length, making it suited for panel mounting, jig fixtures, machine guards, and equipment covers where frequent hand-tightening is required. The overall height is 25 mm. Electricians, HVAC techs, and industrial maintenance personnel use lobed knobs like this on enclosure panels, equipment frames, and adjustable brackets.

This lobed knob is applicable in light industrial and trade settings wherever a tool-free threaded fastener is needed. Common install scenarios include securing access panels on electrical enclosures, adjusting brackets on HVAC equipment, clamping jig components, and mounting guards on rotating machinery. The M8 x 1.25 thread is a standard metric size found on a wide range of OEM equipment and fabricated assemblies. Sold individually in single-unit packaging.

Key Features

• 7-lobe profile provides multiple grip points for secure hand-tightening without tools
• 40 mm head diameter delivers adequate torque by hand for typical panel and bracket fastening
• Thermoplastic elastomer (TPE) construction resists wear and provides tactile grip
• M8 x 1.25 stem thread is a widely used metric standard for industrial and OEM equipment
• 30 mm thread length accommodates standard panel thicknesses and spacer configurations
• 25 mm overall height keeps the knob low-profile on tight assemblies

Compatibility

Designed as a general-purpose metric lobed knob for equipment and assemblies using M8 x 1.25 threaded inserts or studs.

Installation Notes

Installation requires no special tools — thread the knob onto an M8 x 1.25 stud or threaded insert by hand. Ensure mating threads are clean and free of debris before installation. De-energize or lock out any equipment before accessing panels or guards secured by this knob. Do not use power tools to drive the knob, as overtightening can damage the thermoplastic elastomer body.