S-94302A104 1/4"-20 x 1 1/4" Super-Corrosion-Resistant 316 Stainless Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Superior mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance under heavy loads
• Enhanced load distribution through the integrated 9/16" flange, reducing surface pressure and preventing material damage
• Quick and secure installation with UNC coarse threads and external hex drive, allowing for efficient assembly with standard tools
• Consistent thread engagement ensured by Class 2A thread fit and 3/4" minimum thread length for vibration resistance
• Environmental compliance with RoHS 3 and REACH regulations, making it suitable for regulated industries and global supply chains
• Versatile partial threading design provides both gripping strength and clearance where needed in complex assemblies

Professional Applications & Engineering Value

This 316 stainless steel hex head screw delivers critical performance in demanding applications where corrosion resistance and structural integrity are paramount. The UNC coarse thread design ensures rapid installation in machinery, structural frames, and marine equipment, while the flanged head eliminates the need for separate washers, reducing assembly time and component count. With its 100,000 psi tensile strength, it maintains clamp force in high-vibration environments like industrial machinery, transportation equipment, and chemical processing systems. The external hex drive provides reliable torque transmission, preventing stripping during high-torque applications. These features make it an engineering-grade solution for OEMs and maintenance teams requiring durable industrial fasteners that withstand corrosive agents and mechanical stress.

Specification Summary & Compliance

This 1/4"-20 x 1-1/4" hex head screw features Class 2A thread fit per UNC standards, ensuring precise dimensional accuracy and interchangeability. The partially threaded design with 3/4" minimum thread length provides optimal grip range. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances. Mechanical properties include Rockwell B100 hardness and 100,000 psi tensile strength, meeting industrial requirements for durable fastener performance.