S-92655A649 3/4"-10 x 2 3/4" ASTM A193 18-8 Stainless Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability
• High tensile strength of 75,000 psi ensures secure fastening under heavy loads and mechanical stress
• Precision Class 2A thread fit guarantees consistent engagement and reduces the risk of cross-threading during installation
• Coarse UNC threading provides faster assembly and better performance in materials prone to debris or vibration
• Partially threaded design allows for controlled clamping force and improved joint stability in structural applications
• External hex drive with 1 1/4" head width offers superior torque transmission and easy installation with standard tools
• ASTM A193 Grade B8 certification ensures material integrity and compliance with high-pressure and high-temperature industrial standards

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 3/4"-10 UNC hex head screws deliver reliable performance in critical applications such as pressure vessels, piping systems, and heavy machinery. The 18-8 Stainless Steel composition provides excellent resistance to corrosion and oxidation, reducing maintenance costs in chemical processing, marine, and outdoor installations. With a coarse thread design and partial threading, these fasteners ensure quick assembly and secure clamping in materials where vibration loosening is a concern. The external hex drive facilitates high-torque installation, making them suitable for structural connections requiring consistent preload and durability under cyclic loading conditions.

Specification Summary & Compliance

This hex head screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy. Manufactured in compliance with ASTM A193 Grade B8 specifications, it meets requirements for high-strength applications in elevated temperature services. The fastener is supplied in inch measurements, featuring a thread size of 3/4"-10, head width of 1 1/4", and overall length of 2 3/4". Material properties include Rockwell B100 hardness and 75,000 psi tensile strength, ensuring reliability in industrial settings. Conforms to relevant material and performance standards for consistent quality and safety.