S-94320A737 1/4"-20 x 1/2" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Effortless hand-tightening with a high-profile round head and deep knurling for superior grip without tools
- Excellent corrosion resistance due to durable Nylon Plastic construction, ideal for various environments
- Reliable fastening performance with 11,000 psi tensile strength for secure assembly in light to medium-duty applications
- Wide temperature tolerance from -40° to 185°F, maintaining integrity in fluctuating conditions
- Quick installation and alignment with 1/4"-20 UNC coarse threads and Class 2A fit for easy starting and consistent engagement
- Full threading along the 1/2" length provides maximum adjustability and holding power
- Environmentally compliant design meeting RoHS 3 standards for safe use in regulated industries
Professional Applications & Engineering Value
This high-profile round head thumb screw in Nylon Plastic addresses common assembly challenges by combining user-friendly operation with robust material properties. The deeply knurled head texture ensures a secure, non-slip grip, enabling rapid hand-tightening and reducing dependency on tools in tight spaces or high-frequency adjustment scenarios. Its coarse UNC threads and Class 2A thread fit facilitate quick engagement and minimize cross-threading risks, which is critical in production lines where speed and reliability are paramount. Ideal for electronics enclosures, machinery panels, and laboratory equipment, this screw offers electrical insulation, resistance to many chemicals, and durability across a broad temperature range, making it a versatile choice for OEMs and maintenance teams seeking efficient, repeatable fastening solutions.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a 1/4"-20 thread size and Class 2A thread fit for consistent dimensional accuracy and reliable performance. The fully threaded design and right-hand thread direction ensure uniform stress distribution. It is manufactured to be RoHS 3 (2015/863/EU) Compliant, confirming the absence of hazardous substances and supporting use in environmentally conscious applications.
