S-91882A338 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 with knurled round head and raised profile for secure, tool-free operation in tight spaces
- Superior corrosion resistance from black-oxide steel finish, extending service life in demanding industrial environments
- High mechanical strength with 70,000 psi tensile strength and Rockwell B84 hardness for reliable performance under load
- Precision thread engagement with Class 2A UNC coarse threads ensuring consistent fit and vibration resistance
- Full-threaded design providing maximum holding power across the entire 3/8" length
- Regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
- Quick installation with right-hand thread direction following industry-standard UNC specifications
Professional Applications & Engineering Value
This black-oxide steel thumb screw delivers exceptional value in industrial settings where frequent adjustments and secure fastening are critical. The knurled head texture combined with the raised round profile provides positive grip even with oily hands or gloves, eliminating the need for tools in maintenance-heavy applications. Engineered with 8-32 UNC coarse threads and Class 2A thread fit, it ensures rapid installation and reliable performance in machinery, electronic enclosures, and assembly jigs. The fully threaded design maximizes engagement depth while the 70,000 psi tensile strength withstands repeated tightening cycles without stripping. Ideal for equipment requiring regular access panels, calibration points, or modular components where manual operation efficiency is paramount.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threads with Class 2A thread fit tolerance for consistent mating with standard components. Manufactured from black-oxide steel with complete full threading along the 3/8" length. Compliant with RoHS 3 (2015/863/EU) under exemption 6(a)-I and REACH (EC 1907/2006) regulations, ensuring environmental safety in industrial applications.
