S-99607A193 1/4"-20 x 1" 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 manual grip and torque application with a knurled round head design, reducing tool dependency and speeding up assembly.
- Superior corrosion resistance and durability thanks to 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- High mechanical strength and load-bearing capability with 80,000 psi tensile strength and Rockwell B85 hardness for reliable performance.
- Easy and quick installation with coarse UNC threads and Class 2A fit, ensuring smooth engagement and reduced cross-threading risks.
- Full-threaded design for maximum holding power along the entire 1" length, providing consistent clamping force.
- Secure and stable seating due to the flared collar profile, which helps distribute pressure and prevent loosening.
- Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.
Professional Applications & Engineering Value
This 1/4"-20 thumb screw in 18-8 Stainless Steel is engineered to address common industrial challenges such as frequent adjustments, exposure to moisture, and the need for rapid assembly without specialized tools. The knurled head offers exceptional grip, minimizing slippage and improving operator efficiency in applications like machinery panels, electronic enclosures, and prototyping setups. Its coarse UNC thread and Class 2A fit ensure quick, reliable fastening, while the fully threaded design and flared collar enhance stability and vibration resistance. Ideal for maintenance-heavy or corrosive environments, this thumb screw delivers long-term durability and consistent performance, reducing downtime and replacement costs.
Specification Summary & Compliance
This thumb screw adheres to precise dimensional standards, including UNC thread with Class 2A tolerance for consistent fit and performance. It meets manufacturing specifications for 18-8 Stainless Steel with a tensile strength of 80,000 psi and hardness of Rockwell B85. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industrial and electronic applications.
