Gibraltar TS-820-G Steel Thumb Screw M8 X 1.25 Knurled

Product Description

The GIBRALTAR TS-820-G is a metric thumb screw designed for tool-free fastening applications in industrial, mechanical, and trade equipment settings. It features a knurled plastic head for a secure hand grip, a zinc-finished steel body for corrosion resistance, and a shouldered shank for precise seating against mating surfaces. The M8 x 1.25 thread standard makes it a common choice wherever metric fasteners are specified. The black knurled head measures 30 millimeters in diameter and 11 millimeters in height, providing enough grip surface for repeated hand tightening without tools.

This thumb screw is suited for panel mounting, enclosure access covers, jigs, fixtures, and equipment assemblies that require frequent removal or adjustment. It is commonly installed by electricians, HVAC technicians, and mechanical trades in applications where access panels or guards must be secured without the use of a wrench. The shouldered design aids alignment during assembly and prevents the fastener from pulling through thin panels or flanges.

Key Features

• M8 x 1.25 metric thread for compatibility with standard metric hardware
• Knurled black plastic head allows secure hand tightening without tools
• Shoulder design provides positive seating and alignment against mating surfaces
• Zinc-finished steel body resists corrosion in typical indoor mechanical environments
• 30 millimeter head diameter offers adequate grip for repeated hand operation
• Compact overall length of 39.5 millimeters suits shallow panel and enclosure applications

Compatibility

Designed as a standard metric replacement or maintenance thumb screw for equipment panels, enclosures, jigs, and fixtures that use M8 x 1.25 threaded fasteners with a shouldered configuration.

Installation Notes

Installation requires no special tools for hand-tightening, but ensure the mating threaded insert or nut is clean and free of debris before threading. For applications in electrical enclosures, de-energize the panel before servicing fasteners per NFPA 70 (NEC) guidelines. Do not over-torque by using a wrench or driver on the plastic head, as this may crack the knurled head or strip the thread. Verify shoulder diameter clearance against the panel bore before final assembly.