S-91882A335 8-32 x 5/16" 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 grip and torque application with knurled round head and raised profile for easy manual tightening in industrial settings
- Superior corrosion resistance and durability thanks to black-oxide steel construction, extending service life in harsh environments
- High tensile strength of 70,000 psi ensures reliable fastening under heavy loads without failure
- Precise Class 2A thread fit with UNC coarse threads for quick assembly and secure connections
- Full threading along the 5/16" length provides maximum engagement and adjustability in various applications
- Rockwell B84 hardness offers excellent wear resistance, reducing maintenance needs
- Compliance with RoHS 3 and REACH regulations ensures safe, eco-friendly use in global markets
Professional Applications & Engineering Value
This 8-32 UNC thumb screw is engineered to address common industrial challenges, such as frequent adjustments and exposure to corrosive elements. The black-oxide steel material provides a protective layer that minimizes rust and wear, ideal for machinery, electronics, and automotive assemblies where reliability is critical. Its knurled head with a raised profile allows for effortless hand-tightening, even in tight spaces or when tools are impractical. With a coarse thread spacing and right-hand thread direction, it ensures rapid installation and removal, reducing downtime in production lines. The fully threaded design and robust construction make it a versatile choice for securing panels, fixtures, and components, delivering long-term performance in demanding environments.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for precise dimensional accuracy and smooth engagement. It meets RoHS 3 (2015/863/EU) compliance with exemption 6(a)-I for lead as an alloying element in steel and is REACH (EC 1907/2006) compliant, ensuring it aligns with environmental and safety regulations for industrial use.
