S-98201A513 3/8"-16 x 1 5/8" Exact-Grip-Length Flanged Socket 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.
• Exceptional holding power from 80,000 psi tensile strength and Rockwell B83 hardness, preventing fastener failure under high stress.
• Precise, secure fit with Class 3A thread tolerance, ensuring minimal backlash and reliable assembly in critical applications.
• Integrated flange design eliminates the need for a separate washer, distributing load evenly and speeding up installation.
• Easy installation and removal with a 5/16" hex drive, allowing high torque application in confined spaces.
• Optimized for coarse threading with 3/8"-16 UNC, providing rapid assembly and strong resistance to vibration loosening.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This flanged socket head cap screw is engineered to solve common industrial fastening challenges, such as vibration-induced loosening and corrosion in demanding environments. The 18-8 Stainless Steel material offers excellent resistance to rust and chemicals, making it suitable for machinery, automotive assemblies, and outdoor equipment. The UNC coarse thread and Class 3A fit ensure quick, accurate installation with reduced risk of cross-threading, while the integrated flange provides a larger bearing surface to prevent surface damage and maintain clamp load. Ideal for high-strength applications where reliability and durability are critical, this fastener minimizes maintenance and enhances operational safety in industrial settings.

Specification Summary & Compliance

This fastener adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances. The specifications include a thread size of 3/8"-16, a length of 1 5/8", and a partially threaded design with a 1" grip length, providing consistent performance in line with industrial requirements.