S-97646A311 1/4"-20 x 1 3/4" 18-8 Stainless Steel Serrated-Flange Hex Head Screws
18-8 Stainless Steel Serrated-Flange Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive 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 harsh environments and long-term reliability
- Exceptional mechanical strength offering 100,000 psi tensile strength and Rockwell B100 hardness for demanding applications
- Secure anti-loosening performance through serrated locking design that prevents vibration-induced back-off
- Easy installation and removal with external hex drive and standard 1/4"-20 UNC coarse thread for quick assembly
- Enhanced load distribution thanks to the integrated flange, reducing surface pressure and material damage
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and reliable fastening
- Full regulatory compliance meeting RoHS 3 and REACH standards for safe, environmentally responsible use
Professional Applications & Engineering Value
This flanged hex head screw is engineered to address critical industrial challenges where vibration resistance, corrosion prevention, and high tensile strength are paramount. The 18-8 stainless steel material provides excellent durability against moisture, chemicals, and temperature variations, making it suitable for outdoor equipment, marine hardware, and food processing machinery. The UNC coarse thread and fully threaded design ensure rapid installation and maximum grip in various substrates, while the serrations under the head deliver reliable locking without requiring additional washers or adhesives. Its external hex drive allows for high-torque application with standard tools, streamlining maintenance and assembly processes in automotive, construction, and heavy machinery sectors.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and consistent performance. Manufacturing adheres to standard inch system specifications, including a flange diameter of 9/16" and full threading along the 1-3/4" length. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial and commercial use.
