S-91882A389 10-32 x 5/8" 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
- Superior grip and effortless manual operation with knurled round head design, eliminating the need for tools in industrial settings
- Exceptional durability and corrosion resistance provided by black-oxide steel construction, extending service life in demanding environments
- High-strength performance under load with 70,000 psi tensile strength and Rockwell B84 hardness for reliable fastening
- Precise and secure thread engagement with Class 2A thread fit and 10-32 UNF fine thread for vibration-resistant connections
- Maximum fastening versatility from fully threaded design, allowing for adjustable positioning along the entire 5/8" length
- Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries
- Optimized for right-hand thread applications with standard UNF threading for compatibility with existing industrial equipment
Professional Applications & Engineering Value
This black-oxide steel thumb screw delivers critical engineering advantages for industrial applications where tool-free access and reliable fastening are paramount. The knurled round head provides superior tactile grip even with gloved hands, solving the common problem of slippage during manual adjustments in machinery, electronics enclosures, and equipment panels. The 10-32 UNF fine thread configuration ensures precise engagement with mating components, while the Class 2A thread fit maintains consistent performance in applications subject to vibration. With full threading along the 5/8" length, engineers gain flexible positioning capabilities for panel mounting, access covers, and adjustable components across manufacturing, telecommunications, and automotive sectors.
Specification Summary & Compliance
This thumb screw features precision 10-32 UNF fine threads with Class 2A thread fit tolerances and right-hand thread direction. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(a)-I for lead as an alloying element in steel, and meets REACH (EC 1907/2006) compliance requirements. The component maintains dimensional accuracy with 1/2" head diameter, 7/32" head height, and 5/8" overall length for consistent performance in industrial fastening applications.
