S-91185A923 1/4"-20 x 7/8" 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
- Effortless hand-tightening with a wide two-arm Acetal plastic head for superior grip without tools
- Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in demanding environments
- Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal play
- Durable Acetal plastic head offers excellent wear resistance and operates reliably from 32° to 180°F
- Coarse UNC threading enables quick installation and removal, boosting assembly efficiency
- Fully threaded design allows for maximum adjustability and holding power along the entire 7/8" length
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance
Professional Applications & Engineering Value
This 1/4"-20 thumb screw combines the corrosion resistance of 18-8 stainless steel with the ergonomic advantages of a black Acetal plastic head, making it ideal for frequent-adjustment applications in electronics, machinery panels, and industrial equipment. The Class 3A UNC coarse thread ensures rapid engagement and high clamping force, reducing assembly time while maintaining secure connections even under vibration. The two-arm head design provides exceptional torque application by hand, eliminating the need for tools in tight spaces or when quick access is required. Its fully threaded 7/8" length offers versatile positioning, while the temperature-stable Acetal head maintains integrity across a wide operational range, solving common issues of tool stripping, corrosion, and slow installation in maintenance-heavy environments.
Specification Summary & Compliance
This thumb screw features a 1/4"-20 UNC coarse thread with Class 3A fit for precise dimensional accuracy, ensuring consistent performance in industrial assemblies. Manufactured from 18-8 stainless steel with a black Acetal plastic head, it is fully threaded and measures 7/8" in length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting stringent environmental and safety standards for global industrial use.
