Vlier TH104 Aluminum Thumb Screw 2 Inch Head

Product Description

The VLIER TH104 is an aluminum thumb screw designed for tool-free manual adjustment in mechanical assemblies, fixtures, and positioning equipment. The screw features a 2-inch head diameter and a knurled or contoured grip profile that allows operators to apply controlled torque by hand without tooling. With an adjustable torque range of 3 to 12 inch-pounds and a stem diameter of 0.734 inches, this fastener suits applications where repeatable hand-tightened clamping or adjustment is required. The all-aluminum construction keeps the component lightweight while maintaining the dimensional precision required for production and assembly environments.

The TH104 is suited for use in industrial machinery, fixture plates, jigs, and mechanical positioning systems where frequent manual adjustment is part of normal operation. Its aluminum material makes it a practical choice in environments where weight reduction, corrosion resistance, or non-magnetic properties are priorities. Maintenance technicians, machine builders, and fixture designers are the primary installers of this type of component.

Key Features

• Aluminum construction for lightweight and corrosion-resistant performance
• 2-inch head diameter for comfortable hand grip and torque application
• Adjustable torque range of 3 to 12 inch-pounds for controlled clamping
• Stem diameter of 0.734 inches for precise thread engagement
• Stem length and tip length each measure 9/16 inches
• Manufactured under ISO 9001 quality management standards

Compatibility

Designed as a direct-fit thumb screw for mechanical assemblies, fixture systems, and positioning equipment requiring a 2-inch head diameter fastener with a 0.734-inch stem diameter.

Installation Notes

Installation is performed by hand without specialized tooling. Ensure the mating threaded hole is clean and free of debris before threading the stem in. Do not exceed the rated torque range by using mechanical tools, as this may damage the aluminum threads or the mating component. Confirm proper thread engagement before applying load to the assembly.