S-91882A358 8-32 x 7/16" Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual operation with a 1/2" diameter knurled round head for superior grip and torque application without tools
• Exceptional durability and corrosion resistance from black-oxide steel construction, extending service life in demanding environments
• Reliable fastening performance with 70,000 psi tensile strength and Rockwell B84 hardness for heavy-duty applications
• Precise thread engagement thanks to Class 2A UNC coarse threads, ensuring consistent fit and reduced cross-threading risks
• Full-threaded design for maximum holding power along the entire 7/16" length
• Compliance with environmental standards including RoHS 3 and REACH, making it suitable for regulated industries
• Right-hand coarse threading for quick installation and removal in general-purpose assemblies

Professional Applications & Engineering Value

This 8-32 UNC thumb screw is engineered to address common industrial challenges such as frequent adjustments and tool-free access requirements. The black-oxide steel material provides excellent resistance to rust and wear, while the knurled head with a raised profile ensures a secure grip even with oily hands or gloves. Ideal for industrial equipment, electronic enclosures, and machinery panels, it combines 70,000 psi tensile strength with a Class 2A thread fit to prevent loosening under vibration. The fully threaded design and coarse UNC spacing enable rapid assembly and disassembly, reducing downtime in maintenance-heavy environments.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy. It meets RoHS 3 (2015/863/EU) compliance under exemption 6(a)-I and is REACH (EC 1907/2006) compliant, ensuring environmental safety. Specifications include a thread size of 8-32, length of 7/16", and coarse thread spacing, manufactured to deliver consistent performance in industrial applications.