S-91882A355 8-32 x 3/8" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced manual grip and torque application with a knurled, round head design for slip-resistant operation without tools
- Superior corrosion resistance and durability thanks to the black-oxide steel finish, extending service life in demanding environments
- Reliable and precise thread engagement with UNC coarse threads and Class 2A fit, ensuring consistent fastening and reducing cross-threading risks
- High mechanical strength under load with 70,000 psi tensile strength and Rockwell B84 hardness for secure, long-lasting assemblies
- Full-threaded shank for maximum adjustability and holding power across the entire 3/8" length
- Easy compliance with global regulations, meeting RoHS 3 and REACH standards for safe, sustainable use in industrial applications
- Optimized for quick installation and removal with a raised, round-head profile and right-hand threading for intuitive manual operation
Professional Applications & Engineering Value
This 8-32 UNC thumb screw is engineered to address common challenges in manual fastening, such as tool-free access and repetitive adjustments. The black-oxide steel construction provides a robust barrier against rust and wear, ideal for electronics enclosures, machinery panels, and laboratory equipment where frequent maintenance is required. The knurled head texture ensures a firm grip even with gloves or oily hands, reducing installation time and improving operator safety. With its coarse UNC threads and Class 2A thread fit, it offers quick alignment and reliable performance in vibration-prone settings, making it a versatile choice for industrial assembly lines, automotive components, and telecom infrastructure.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy. Key specifications include a 8-32 thread size, 3/8" length, and fully threaded design. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial use.
