S-90200A254 10-32 x 1/2" 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 with a 5/8" knurled head, allowing for quick, tool-free installation and removal in tight spaces.
- Superior corrosion resistance from the black-oxide steel finish, extending service life in humid or demanding industrial environments.
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and resistance to deformation under stress.
- Precise Class 2A thread fit with 10-32 UNF fine threads for secure, vibration-resistant fastening in precision assemblies.
- Full threading along the 1/2" length provides maximum engagement and adjustability across various material thicknesses.
- Rockwell B84 hardness offers excellent durability and wear resistance, reducing the risk of stripping or damage during repeated use.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global supply chains.
Professional Applications & Engineering Value
This 10-32 UNF thumb screw is engineered to address common challenges in industrial assembly, such as the need for rapid access without specialized tools. The black-oxide steel construction provides a protective layer against rust and oxidation, making it ideal for electronics enclosures, machinery panels, and outdoor equipment where moisture exposure is a concern. The knurled head delivers a non-slip surface, enabling secure handling even with gloves, while the low-profile round head minimizes protrusion in compact designs. With its fine thread spacing and Class 2A fit, this fastener ensures tight, reliable connections that resist loosening under vibration, enhancing overall assembly integrity and reducing maintenance downtime.
Specification Summary & Compliance
This thumb screw adheres to UNF thread standards with a 10-32 thread size and Class 2A thread fit for precise dimensional accuracy. It is manufactured from black-oxide steel with a tensile strength of 70,000 psi and Rockwell B84 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006), meeting environmental and safety requirements for industrial use.
