S-90772A383 8-32 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
- Secure hand-tightened operation with spade-shaped thumb head design for easy installation without tools
- Surface protection for sensitive components through soft nylon tip that prevents scratching and damage
- Corrosion-resistant zinc-plated steel construction ensures long service life in demanding industrial environments
- Reliable thread engagement with Class 2A UNC coarse threads providing consistent fastening performance
- High mechanical strength with 40,000 psi tensile strength and Rockwell B71 hardness for durable applications
- Full threading capability allows for maximum adjustability and secure positioning throughout the entire length
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
Professional Applications & Engineering Value
This 8-32 UNC thumb screw combines the mechanical strength of zinc-plated steel with the protective benefits of a nylon tip to solve critical fastening challenges in industrial settings. The spade head design enables quick manual adjustments without tools, while the soft nylon tip prevents marring and damage to sensitive surfaces in electronics, instrumentation, and precision equipment. The coarse thread configuration with Class 2A thread fit ensures reliable engagement even in applications requiring frequent adjustments. With right-hand threading and full-length threads, this fastener provides secure positioning in panel mounting, access covers, and adjustable components where tool-free operation and surface protection are essential.
Specification Summary & Compliance
This thumb screw features precision 8-32 UNC coarse threads with Class 2A thread fit for consistent performance. The zinc-plated steel construction provides corrosion resistance, while the nylon tip measures 3/64" in length and 3/32" in diameter. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental and safety regulations are satisfied for industrial applications requiring certified components.