S-94955A090 5/16"-18 x 1" 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 knurled thumb head design for superior manual grip and handling efficiency
- Excellent corrosion and chemical resistance due to durable black nylon construction, ideal for harsh environments
- Reliable 13,000 psi tensile strength provides secure fastening for light to medium-duty industrial applications
- Wide operating temperature range from -40°F to 185°F ensures consistent performance in varied conditions
- Low-profile round head design minimizes protrusion for applications with limited clearance
- Precise UNC coarse threading with Class 2A fit ensures smooth engagement and reliable assembly
- Full compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance
Professional Applications & Engineering Value
This black nylon thumb screw is engineered to solve common industrial challenges where frequent adjustments, corrosion resistance, and electrical insulation are critical. The low-profile knurled round head provides exceptional manual grip without tools, speeding up assembly in electronics enclosures, machinery panels, and laboratory equipment. Made from robust nylon plastic, it eliminates galvanic corrosion risks when used with dissimilar metals and withstands exposure to oils, solvents, and moisture. The UNC coarse thread and Class 2A fit ensure quick, secure fastening in plastic and soft material applications, reducing cross-threading incidents. Its fully threaded design offers versatile positioning, making it ideal for prototyping, maintenance access panels, and consumer product assemblies requiring repeated manual operation.
Specification Summary & Compliance
This thumb screw features 5/16"-18 UNC coarse threading with Class 2A thread fit for standard industrial tolerance. It maintains a 1" length and 3/4" head diameter with full threading for consistent performance. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for global industrial use.
