S-94323A921 5/16"-18 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
- Tool-free installation and adjustment with ergonomic knurled thumb head for secure grip even with gloves
- Corrosion-resistant nylon construction eliminates rust and galvanic corrosion in electrical/outdoor applications
- Wide temperature tolerance (-40° to 185°F) maintains performance in demanding environments
- 11,000 psi tensile strength provides reliable clamping force for industrial assemblies
- Coarse UNC threading with Class 2A fit ensures rapid installation and vibration resistance
- Fully threaded shank design allows flexible positioning and consistent engagement depth
- RoHS 3 compliance meets environmental regulations for commercial and industrial use
Professional Applications & Engineering Value
Engineered for repeated access panels, electronic enclosures, and machinery guards, this nylon thumb screw solves common corrosion and conductivity concerns in sensitive applications. The knurled head texture provides positive grip during frequent adjustments, while the plastic construction prevents damage to mating surfaces. With UNC coarse thread spacing and Class 2A thread fit, installation requires minimal effort while maintaining secure fastening in vibration-prone environments. The temperature-resistant nylon material ensures dimensional stability across industrial temperature ranges, making it ideal for outdoor equipment, food processing machinery, and electrical enclosures where metal fasteners could cause short circuits or contamination.
Specification Summary & Compliance
This 5/16"-18 thumb screw features UNC coarse threads with Class 2A thread fit for standard industrial compatibility. The fastener meets RoHS 3 (2015/863/EU) compliance requirements, containing no restricted hazardous substances. Manufacturing follows standard inch system specifications with fully threaded design and right-hand thread direction for conventional installation. The 1/2" length and integrated collar provide consistent engagement depth across multiple applications.
