S-91830A304 8-32 x 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and long-term reliability.
• Effortless hand-tightening and loosening thanks to the knurled, round head design, eliminating the need for tools in frequent-adjustment applications.
li>Exceptional mechanical strength with an 80,000 psi tensile strength and Rockwell B83 hardness, ensuring high load-bearing capacity and resistance to wear.
• Reliable and coarse threading with 8-32 UNC and Class 2A fit, providing quick assembly and secure fastening in a wide range of materials.
• Full-threaded shank for maximum grip and engagement along the entire 1/2" length, enhancing holding power in various thicknesses.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets and sensitive applications.
• Raised head profile with integrated collar for improved finger grip and a finished appearance, adding both functionality and a professional look.

Professional Applications & Engineering Value

This 8-32 UNC thumb screw is engineered to solve common industrial challenges where tool-less access and frequent adjustments are required. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it perfect for use in electronics enclosures, machinery panels, and outdoor equipment. The coarse thread and fully threaded design allow for rapid installation and a secure hold in softer materials or pre-tapped holes, reducing assembly time. The knurled head offers a non-slip surface, enabling quick hand-tightening even in low-light or tight spaces, enhancing operational efficiency in maintenance and prototyping applications.

Specification Summary & Compliance

This thumb screw features a Class 2A thread fit for consistent and reliable engagement, adhering to UNC (Unified National Coarse) standards. The dimensional accuracy includes a 1/2" length, 1/2" head diameter, and a right-hand thread direction. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally conscious industries.