Gibraltar PKG-379-G Lobed Knob 40mm 7-point M8x1.25

Product Description

The GIBRALTAR PKG-379-G is a 7-point lobed knob designed for tool-free manual adjustment and clamping applications across industrial, mechanical, and trade equipment. The knob features a 40 mm (approximately 1.57 inches) head diameter molded from thermoplastic elastomer, which provides a firm, slip-resistant grip surface. The threaded steel stem is M8 x 1.25 with a 25 mm (approximately 0.98 inch) thread length and an overall height of 25 mm (approximately 0.98 inch). It is used by maintenance technicians, fabricators, and equipment assemblers wherever a hand-tightened fastening point is required.

This lobed knob is suited for light industrial machinery, jigs, fixtures, enclosures, and equipment panels that require frequent manual adjustments without tools. The thermoplastic elastomer construction handles moderate mechanical loads and resists oils and common shop fluids. Applications include HVAC equipment access panels, pump and filter housings, and control enclosures where technicians need fast, repeated access.

Key Features

• 7-point lobed profile for positive hand grip and high torque transfer without tools
• Thermoplastic elastomer construction resists oils, solvents, and mechanical wear
• 40 mm head diameter (approximately 1.57 inches) for comfortable palm engagement
• M8 x 1.25 threaded stem with 25 mm (approximately 0.98 inch) thread engagement length
• Compact 25 mm overall height suits tight clearance installations

Compatibility

Designed as a standard M8 x 1.25 threaded lobed knob for use in any application requiring a hand-tightened fastener with an M8 x 1.25 female threaded receiver.

Installation Notes

Installation is performed by hand threading the stem into a pre-tapped M8 x 1.25 receiver. Power down or de-energize any equipment before servicing panels or covers secured by this knob. Do not exceed the manual torque capacity of the thermoplastic elastomer body by using tools to drive the knob. Verify thread engagement depth against the 25 mm thread length before final assembly.