S-97646A215 3/8"-16 x 3/4" 18-8 Stainless Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability
• High tensile strength of 100,000 psi ensures dependable performance under heavy loads and vibration
• Secure anti-loosening performance thanks to serrated locking under the flange for stable connections
• Easy installation and removal with external hex drive and coarse UNC threads for quick assembly
• Enhanced load distribution from the integrated flange, reducing surface pressure and material stress
• Precise thread fit (Class 2A) guarantees consistent engagement and reduces cross-threading risks
• Full threading along the 3/4" length provides maximum grip and adjustability in various material thicknesses

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw is engineered to solve critical industrial fastening challenges. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for outdoor equipment, marine applications, and chemical processing plants where moisture and corrosive agents are present. The flanged design with serrations acts as an integrated washer, distributing clamp load effectively and preventing loosening under dynamic loads—eliminating the need for additional lock washers. With a coarse thread profile, it ensures rapid installation in soft materials or where debris accumulation is a concern. The external hex drive allows for high torque application using standard tools, streamlining assembly lines and maintenance procedures. These features collectively enhance structural integrity, reduce maintenance frequency, and support robust performance in heavy-duty fastening applications such as machinery frames, structural steel connections, and transportation equipment.

Specification Summary & Compliance

This fastener adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and interchangeability. Manufacturing complies with material and threading specifications for industrial use. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety regulations for hazardous substance restrictions.