S-90732A330 8-32 x 1/2" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Effortless hand-tightening and removal with a thumb-friendly hex head design, eliminating the need for tools in quick adjustments.
- Superior corrosion resistance thanks to the black-oxide steel finish, extending service life in demanding industrial environments.
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and resistance to stripping under stress.
- Precise Class 2A thread fit guarantees smooth engagement and consistent performance in UNC coarse threaded applications.
- Rockwell B84 hardness provides excellent durability and wear resistance for repeated use without deformation.
- Fully threaded right-hand design allows for maximum grip and secure fastening across the entire 1/2" length.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global industry standards.
Professional Applications & Engineering Value
This 8-32 UNC thumb screw is engineered to address common industrial challenges such as frequent assembly and disassembly in machinery, electronic enclosures, and equipment panels. The black-oxide steel construction offers enhanced corrosion protection, reducing maintenance needs in humid or corrosive settings. Its external hex drive and coarse UNC threading enable quick, tool-free adjustments, saving time in production lines and field service. With a robust Rockwell B84 hardness and 70,000 psi tensile strength, it withstands high-stress applications without failure, making it ideal for securing components in automotive, aerospace, and manufacturing sectors where reliability is critical.
Specification Summary & Compliance
This thumb screw adheres to UNC coarse thread standards with a precise Class 2A thread fit for consistent dimensional accuracy. It is manufactured from black-oxide steel and is fully threaded with a right-hand direction. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(a)-I for lead as an alloying element in steel, and REACH (EC 1907/2006) adherence, ensuring it meets environmental and safety regulations for industrial use.
