S-91746A224 8-32 x 5/8" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for demanding environments.
- Excellent hand-tightening grip thanks to the fully knurled round head, enabling quick installation without tools.
- High mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for reliable, long-lasting fastening.
- Easy and fast engagement with 8-32 UNC coarse threading, designed for efficient assembly in various materials.
- Secure and precise thread fit ensured by Class 2A thread tolerance, reducing the risk of cross-threading.
- Full-length threading provides maximum thread engagement and holding power along the entire 5/8" length.
- Compliance with environmental regulations including RoHS 3 and REACH, making it suitable for regulated industries.
Professional Applications & Engineering Value
This 8-32 UNC thumb screw in 18-8 stainless steel is engineered to solve common industrial challenges such as frequent adjustments and exposure to corrosive elements. The knurled head offers a non-slip surface, allowing operators to tighten or loosen the screw quickly by hand, which is crucial on assembly lines or in maintenance panels where tools are impractical. Its coarse thread spacing and Class 2A thread fit ensure reliable engagement in softer materials or pre-tapped holes, reducing installation time and minimizing thread damage. With a low-profile round head and full threading, it provides a flush fit and consistent clamping force, making it ideal for electronics enclosures, machinery guards, and other industrial applications that demand both durability and ease of use.
Specification Summary & Compliance
This thumb screw adheres to UNC thread standards with a size of 8-32 and a thread diameter of 0.164". It features a Class 2A thread fit for standard tolerance and coarse thread spacing, ensuring compatibility and ease of use. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances, suitable for global industrial and electronic applications.
