Electro Hardware THS3054M01F07 Brass Thumb Screw 1/4-20

Product Description

The ELECTRO HARDWARE THS3054M01F07 is a knurled-head thumb screw machined from Grade 1 brass and finished in nickel. It features a 1/4-20 UNC thread with a 5/8-inch thread length and an overall length of 7/8 inch. The knurled head measures 1/2 inch in diameter and 1/4 inch in height, providing a secure grip for hand-tightening without tools. The nickel finish adds corrosion resistance suitable for light-duty fastening applications in panel assemblies, enclosures, and equipment covers. This fastener is handled by electricians, HVAC technicians, and mechanical assemblers during equipment installation and maintenance.

This thumb screw is used in applications where frequent removal and re-installation of panels or access covers is required. Its without-shoulder design keeps the profile compact, making it a practical choice for electrical enclosures, control panels, HVAC equipment housings, and light mechanical assemblies. The 1/4-20 UNC thread is one of the most common coarse-thread standards in North American trade applications, ensuring broad interchangeability across equipment types.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes
• Knurled head allows hand-tightening and removal without tools
• Grade 1 brass construction with nickel finish for corrosion resistance
• Without-shoulder design for compact low-profile installation
• 5/8-inch thread length suitable for standard panel thicknesses
• Meets QQ-B-626B Comp 22 and QQ-N-290A standards

Compatibility

Designed as a standard 1/4-20 UNC thumb screw replacement for use in electrical enclosures, control panels, HVAC equipment housings, and other assemblies requiring tool-free fastening.

Installation Notes

Installation requires no tools under normal hand-tightening conditions. Ensure the mating tapped hole is clean and free of debris before threading. Do not use power tools to drive this fastener, as over-torquing can damage the brass threads or the mating component. Verify thread engagement is full and secure before returning equipment to service.