Electro Hardware THS3055M07F16 Thumb Screw 1/4-20 Ss

Product Description

The ELECTRO HARDWARE THS3055M07F16 is a 303 stainless steel thumb screw with a knurled head, designed for hand-tightened fastening applications where tools are not required or practical. The 1/4-20 UNC thread and 15/16 inch overall length make this a compact, corrosion-resistant fastener suited for panels, enclosures, covers, and assemblies that require frequent removal or adjustment. The knurled head provides secure finger grip without additional hardware. At 303 stainless steel grade, this screw offers good corrosion resistance and machinability, meeting QQ-S-763 material standards. It is supplied uncoated with no shoulder.

This thumb screw is well suited for light industrial, electrical, HVAC, and mechanical assembly applications where quick-disconnect fastening is needed. It is commonly used in control panels, access covers, junction boxes, and equipment enclosures. The 1/4-20 UNC thread is one of the most widely used fastener thread standards in inch-system mechanical assembly, making this screw broadly compatible across trade and industrial applications. Installation requires no special tools, making it appropriate for field service and maintenance use by electricians, HVAC technicians, and mechanical assemblers.

Key Features

• 303 stainless steel construction meeting QQ-S-763 standard for corrosion resistance
• Knurled head for tool-free hand tightening and removal
• 1/4-20 UNC thread standard, widely compatible with inch-system hardware
• 11/16 inch thread length provides reliable thread engagement
• No shoulder design for flush or direct panel mounting
• Uncoated finish maintains dimensional accuracy and conductivity where needed

Compatibility

Designed as a standard 1/4-20 UNC inch-system thumb screw for use in panel, enclosure, and equipment fastening applications requiring hand-operated removal.

Installation Notes

Install by hand into a pre-tapped 1/4-20 UNC threaded hole or with a matching 1/4-20 nut. De-energize all electrical equipment before servicing any panel or enclosure using these fasteners. Do not over-torque by tool; these fasteners are intended for hand-tight applications. Verify thread engagement covers the full 11/16 inch thread length to ensure holding strength.