S-97568A581 5/16"-18 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
- Enhanced corrosion resistance with zinc-plated iron construction, ideal for humid or industrial environments.
- Effortless hand-tightening and adjustment thanks to the 1 3/4" wing head design for superior grip without tools.
- Secure and reliable fastening ensured by the fully threaded 5/16"-18 UNC coarse thread for quick engagement and strong holding power.
- Consistent fit and interchangeability with Class 2A thread fit, providing reliable performance in standard applications.
- Durable and long-lasting performance from the robust iron material, built for repeated use in demanding settings.
- Compliance with global safety standards, including RoHS 3 and REACH, ensuring environmental responsibility and workplace safety.
- Right-hand thread direction for intuitive and standard installation, reducing assembly errors.
Professional Applications & Engineering Value
This zinc-plated iron thumb screw is engineered to solve common industrial challenges, such as the need for quick, tool-free access in maintenance panels, machinery guards, and electronic enclosures. The wing head design provides maximum torque and grip, reducing operator fatigue during frequent adjustments. Its UNC coarse thread and Class 2A fit ensure fast, secure engagement in various materials, preventing loosening under vibration. The zinc plating offers a protective barrier against rust and corrosion, extending the screw's lifespan in harsh conditions like manufacturing floors or outdoor equipment. Ideal for applications requiring reliable, reusable fasteners that meet stringent RoHS and REACH compliance, this thumb screw delivers consistent performance in assembly lines, HVAC systems, and automotive components.
Specification Summary & Compliance
This thumb screw adheres to precise dimensional tolerances, including a head diameter tolerance of -0.0156" to 0.0156" and a Class 2A thread fit for consistent performance. It conforms to UNC thread standards with coarse thread spacing and right-hand direction. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.
