S-91830A305 8-32 x 5/8" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional grip and torque application thanks to the knurled round head with raised profile for easy hand-tightening
• High mechanical strength with 80,000 psi tensile strength and Rockwell B83 hardness for reliable, heavy-duty fastening
• Wide compatibility and easy installation with standard 8-32 UNC coarse threads and Class 2A fit for quick assembly
• Full-length threading ensures maximum engagement and holding power along the entire 5/8" length
• Compliance with major environmental regulations including RoHS 3 and REACH for safe, sustainable use in global markets
• Right-hand thread direction provides familiar, intuitive tightening for standard industrial applications

Professional Applications & Engineering Value

This 8-32 UNC thumb screw in 18-8 stainless steel is engineered to solve critical fastening challenges in industrial settings where tool-free operation and corrosion resistance are paramount. The fully threaded design with coarse spacing ensures rapid installation and secure holding in materials like aluminum and soft metals, while the knurled head with raised profile delivers superior grip even with gloved hands. Ideal for access panels, electronic enclosures, and machinery guards, it eliminates the need for tools, reducing maintenance time and improving operational efficiency in demanding environments.

Specification Summary & Compliance

This thumb screw features precise Class 2A thread fit per UNC standards, ensuring consistent engagement and reliability. Manufactured from 18-8 stainless steel with a Rockwell B83 hardness and 80,000 psi tensile strength, it meets rigorous industrial demands. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible procurement and use.