S-92421A197 8-32 x 3/4" 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 manual operation with knurled round head design for enhanced grip and torque application without tools
- Excellent corrosion resistance due to high-quality brass construction, ideal for humid or corrosive environments
- Secure fastening stability with flared collar design that prevents over-tightening and distributes load evenly
- Wide compatibility with Class 2A UNC coarse threads ensuring reliable engagement with standard industrial components
- Time-saving installation through fully threaded design and right-hand thread direction for quick manual assembly
- Durable performance with precisely machined 8-32 thread size maintaining consistent fastening integrity
- Regulatory compliance meeting RoHS 3 and REACH standards for safe use in commercial and industrial applications
Professional Applications & Engineering Value
This 8-32 UNC brass thumb screw delivers exceptional value in applications requiring frequent adjustments or tool-free access. The knurled round head provides positive grip even with oily hands or gloves, solving slippage issues common in maintenance and assembly lines. The flared collar acts as a built-in washer, preventing surface damage on sensitive materials while maintaining alignment. Made from corrosion-resistant brass, it outperforms steel fasteners in electrical panels, marine equipment, and food processing machinery where galvanic corrosion is a concern. The fully threaded 3/4" length and coarse UNC threads ensure rapid installation in threaded inserts, panels, and mounting brackets, reducing assembly time in electronics, instrumentation, and industrial controls.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threads with Class 2A thread fit per ASME B1.1 standards, ensuring consistent engagement and interchangeability. Dimensions include 13/32" head diameter, 9/64" head height, and 3/16" collar height with fully threaded 3/4" length. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material traceability for global industrial applications.
