S-97646A230 3/8"-16 x 1 1/2" 18-8 Stainless Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing maintenance costs.
• Superior vibration resistance and non-slip locking provided by the serrated flange, ensuring joint integrity in high-stress applications.
• High tensile strength of 100,000 psi delivers reliable performance under heavy loads, minimizing the risk of fastener failure.
• Excellent durability and wear resistance from a Rockwell B100 hardness rating, extending the screw's service life.
• Easy and secure installation with an external hex drive and coarse UNC threads, allowing for quick assembly with standard tools.
• Precise and reliable thread engagement due to the Class 2A thread fit, ensuring consistent clamping force and reducing cross-threading risks.
• Compliance with major environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw is engineered to solve critical challenges in industrial assembly. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it ideal for outdoor equipment, marine applications, and chemical processing plants where environmental factors degrade ordinary fasteners. The integrated serrated locking flange eliminates the need for separate washers or locknuts, providing a permanent, vibration-resistant grip that prevents loosening in machinery, automotive frames, and structural supports. Its coarse thread and full threading ensure rapid installation and strong holding power in a variety of materials, from metal fabrications to heavy-duty plastics, reducing assembly time and improving project efficiency.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC thread with a Class 2A fit for consistent dimensional accuracy and reliable engagement. It is fully threaded and includes a flange with a 13/16" diameter. The product is manufactured from 18-8 Stainless Steel, hardened to Rockwell B100, and offers a tensile strength of 100,000 psi. It complies 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 industries.