S-91882A352 8-32 x 5/16" 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 operation with knurled round head and raised profile for superior grip without tools
- High-strength fastening with 70,000 psi tensile strength and Rockwell B84 hardness for demanding applications
- Reliable thread engagement through fully threaded UNC coarse design with Class 2A fit for secure connections
- Corrosion-resistant performance thanks to black-oxide steel construction in harsh industrial environments
- Quick installation with right-hand thread direction and 5/16" length for efficient assembly
- Stable seating provided by 3/8" collar diameter to prevent over-tightening and distribute load
- Regulatory compliance meeting RoHS 3 and REACH standards for safe, sustainable use
Professional Applications & Engineering Value
This 8-32 UNC thumb screw delivers exceptional value in industrial settings where rapid, tool-free adjustments are critical. The black-oxide steel material resists corrosion, extending service life in humid or chemically exposed environments. Its fully threaded coarse spacing ensures maximum holding power in softer materials or where vibration resistance is needed. The knurled round head with raised profile offers ergonomic handling, reducing operator fatigue during frequent maintenance cycles on machinery, electronic enclosures, or assembly jigs. With a 70,000 psi tensile strength, it withstands high-stress applications without stripping or failing, making it ideal for repeated use in manufacturing, automotive, and equipment maintenance sectors.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit and UNC standard with coarse thread spacing for consistent performance. The screw meets RoHS 3 (2015/863/EU) compliance under exemption 6(a)-I and adheres to REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are upheld. Dimensions include 5/16" length, 1/2" head diameter, and 3/8" collar diameter for accurate integration into designed assemblies.
