S-91745A534 1/4"-20 x 3/8" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with a wide spade head design for superior grip and quick adjustments without tools.
• Excellent corrosion resistance from 18-8 stainless steel, ensuring long-term reliability in humid or harsh environments.
• Secure and precise fit with Class 2A thread tolerance, reducing cross-threading risks and improving assembly consistency.
• Robust coarse threading (UNC) for faster installation and higher resistance to vibration loosening in industrial settings.
• Full threading along the 3/8" length provides maximum engagement and holding power in various material thicknesses.
• Compliance with RoHS 3 and REACH ensures safe, environmentally responsible use in global markets.
• Right-hand thread direction offers intuitive, standard operation for efficient maintenance and assembly processes.

Professional Applications & Engineering Value

This 1/4-20 UNC thumb screw in 18-8 stainless steel addresses common industrial challenges like frequent adjustments and exposure to corrosive elements. The spade head allows for rapid hand-tightening, reducing downtime in equipment maintenance, panel fastening, and electronic enclosures. Its coarse thread and Class 2A fit ensure reliable performance in high-vibration applications, preventing unintentional loosening. Ideal for machinery, automotive, and commercial assemblies, this screw combines durability with regulatory compliance, supporting efficient operations in demanding environments.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is fully manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of restricted hazardous substances. The specifications include a 1/4"-20 thread size, coarse spacing, and right-hand direction, providing reliable performance for industrial and commercial use.