S-91830A404 10-32 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Secure, slip-resistant grip from the precision knurled round head, enabling quick manual adjustments without tools in industrial environments
• Exceptional corrosion resistance provided by 18-8 Stainless Steel, ensuring long-term reliability and reduced maintenance costs
• High mechanical strength and durability with a tensile strength of 80,000 psi and Rockwell B83 hardness, built to withstand demanding applications
• Precise, reliable fastening with a Class 2A thread fit and 10-32 UNF fine thread, ensuring consistent engagement and vibration resistance
• Full-length threading for maximum thread engagement and holding power along the entire 1/2" length
• Convenient right-hand thread design for intuitive installation and removal, compatible with standard UNF components
• Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications

Professional Applications & Engineering Value

This 10-32 UNF thumb screw is engineered to solve common challenges in equipment maintenance, panel access, and frequent-adjustment assemblies. The 18-8 Stainless Steel construction provides excellent resistance to rust and corrosion, which is critical in harsh or washdown environments. The fully threaded design and Class 2A thread fit ensure a secure, precise fit that minimizes loosening under vibration, a common failure point in machinery. The knurled round head offers an ergonomic, high-torque grip even with oily gloves, speeding up assembly and disassembly without specialized tools. Ideal for use in electronics enclosures, industrial controls, and medical devices, this component enhances serviceability while maintaining structural integrity.

Specification Summary & Compliance

This thumb screw features a 10-32 UNF thread with a Class 2A tolerance for consistent fit and a fine thread spacing for improved adjustment precision. The dimensional specifications include a 1/2" length, 1/2" head diameter, and a 0.19" thread diameter. It is manufactured from 18-8 Stainless Steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial and commercial use.