S-91882A227 6-32 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 grip and tool-free operation with a knurled round head design for secure manual tightening in confined spaces
- Superior corrosion resistance and durability thanks to the black-oxide steel finish, extending service life in harsh environments
- High tensile strength of 70,000 PSI ensures reliable fastening under significant mechanical stress and vibration
- Precise and reliable thread engagement with Class 2A thread fit and coarse UNC threading for quick assembly and reduced cross-threading risk
- Full threading along the 1/2" length provides maximum adjustability and holding power across the entire fastener
- Consistent performance and hardness backed by Rockwell B84 rating, preventing deformation under repeated use
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
Professional Applications & Engineering Value
This 6-32 UNC thumb screw is engineered to solve common industrial challenges where quick access, manual adjustment, and reliable fastening are critical. The black-oxide steel construction offers excellent resistance to rust and wear, making it ideal for electronics enclosures, machinery panels, and assembly jigs exposed to oils or moisture. The knurled head and raised profile allow operators to achieve sufficient torque without tools, speeding up maintenance and reducing downtime. With its coarse thread spacing and fully threaded design, it ensures rapid installation and secure retention in materials where fine threads might strip. Its high tensile strength and Class 2A thread fit provide dependable performance in vibration-prone applications, from automotive components to industrial control systems.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. Key specifications include a 6-32 thread size, 1/2" length, fully threaded shank, and coarse thread spacing. The product is manufactured in compliance with RoHS 3 (2015/863/EU) under exemption 6(a)-I and is REACH (EC 1907/2006) compliant, meeting environmental and safety requirements for industrial and commercial use.
