S-91185A487 5/16"-18 x 5/8" Thumb Screws
Thumb Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Enhanced grip and torque application with knurled acetal plastic head for secure hand-tightening without tools
- Corrosion-resistant performance thanks to 18-8 stainless steel construction, ideal for demanding environments
- Precise, reliable thread engagement with Class 3A thread fit ensuring consistent fastening and vibration resistance
- Space-saving low-profile design allowing use in confined assemblies without compromising accessibility
- Durable plastic head with temperature resistance from 32° to 180° F for varied operational conditions
- Quick installation and adjustment via right-hand coarse (UNC) threading and fully threaded shank
- Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe industrial use
Professional Applications & Engineering Value
This low-profile thumb screw combines the strength of 18-8 stainless steel with the ergonomic benefits of a knurled acetal plastic head, addressing common assembly challenges in electronics, machinery, and instrumentation. The Class 3A thread fit and coarse UNC threading provide rapid, secure fastening, reducing installation time while minimizing cross-threading risks. Its fully threaded design ensures uniform load distribution, enhancing joint integrity in industrial thumb screw applications where frequent adjustments are needed. The plastic head offers electrical insulation and mar-resistant properties, protecting sensitive surfaces. Ideal for panels, enclosures, and adjustable components, this screw delivers reliable performance without specialized tools, streamlining maintenance and production workflows.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a 5/16"-18 thread size and Class 3A thread fit for high precision. It features a fully threaded 5/8" length and right-hand coarse threading for efficient assembly. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial and commercial use.
