Gibraltar ALH-26MTT-G Lobed Knob 4 Point Aluminum M12

Product Description

The GIBRALTAR ALH-26MTT-G is a 4-point lobed knob machined from 6063-T5 aluminum, designed for hand-adjustment applications where a secure, tool-free grip is required. With a 63.5 mm head diameter and an M12 x 1.75 threaded stem, this knob provides positive torque transfer and ergonomic control on fixtures, jigs, machine guards, enclosures, and industrial equipment. The 6063-T5 alloy offers good corrosion resistance and structural integrity for both indoor and light industrial environments. Maintenance technicians, machine builders, and equipment assemblers routinely install this type of hardware during fabrication and field service work.

This lobed knob is suited for use on machine tool fixtures, enclosure panels, equipment frames, and adjustable mechanical assemblies where repeated hand-tightening and loosening is required. The M12 x 1.75 threaded bore fits standard metric fastener configurations common in industrial and OEM equipment. Its aluminum construction keeps weight low while maintaining durability in environments where steel hardware would add unnecessary mass or where corrosion resistance is a consideration.

Key Features

• 4-point lobed profile for positive hand grip without tools
• 63.5 mm head diameter provides broad torque leverage
• M12 x 1.75 threaded stem for standard metric fastener compatibility
• 6063-T5 aluminum construction for corrosion resistance and light weight
• 25 mm hub diameter with 14.3 mm hub height for stable seating on mating surfaces
• 28.6 mm overall height for low-profile installation clearance

Compatibility

Designed as an OEM-style hand knob for industrial fixtures, machine guards, enclosures, and adjustable assemblies using standard M12 x 1.75 metric threaded fastener interfaces.

Installation Notes

Installation requires no specialized tools — the lobed profile is designed for hand-tightening directly onto a compatible M12 x 1.75 threaded stud or bolt. Ensure the mating thread is clean and free of debris before installation to avoid cross-threading. Verify the knob seating surface is flush against the workpiece to achieve full clamping force. Isolate or de-energize any associated equipment before adjusting or replacing hardware in live assemblies.