S-92655A629 5/8"-11 x 2 1/2" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh environments.
• High tensile strength of 75,000 PSI ensures reliable performance under heavy loads and stress.
• Superior hardness (Rockwell B100) provides excellent wear resistance and long-term durability.
• Precise Class 2A thread fit guarantees smooth assembly and secure fastening with minimal risk of cross-threading.
• Optimized 1" grip length offers superior clamping force and stability in demanding applications.
• External hex drive design allows for easy installation and removal with standard tools, improving efficiency.
• ASTM A193 Grade B8 compliance ensures material quality and performance meet rigorous industrial standards.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 5/8"-11 UNC Hex Head Screw delivers robust performance where reliability is critical. The 18-8 Stainless Steel material provides excellent resistance to corrosion and oxidation, making it suitable for chemical processing, marine, and outdoor applications. Its coarse UNC thread and partial threading design enhance grip and reduce the risk of loosening under vibration, while the external hex drive ensures quick, tool-friendly installation. With a 75,000 PSI tensile strength and Rockwell B100 hardness, this fastener withstands high-stress conditions in construction, machinery, and heavy equipment assemblies, ensuring long-term structural integrity and reduced maintenance needs.

Specification Summary & Compliance

This hex head screw features a 5/8"-11 UNC thread with Class 2A fit for precise dimensional accuracy and easy assembly. It complies with ASTM A193 Grade B8 specifications, ensuring material consistency and performance in high-temperature and pressure applications. The fastener is manufactured to meet industry standards for inch system measurements, with a total length of 2 1/2", thread length of 1 1/2", and grip length of 1". It conforms to relevant regulations for quality and safety in industrial use.