S-92655A499 3/4"-10 x 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 reducing maintenance costs
• High tensile strength of 75,000 psi ensures reliable performance under heavy loads and prevents fastener failure
• Coarse UNC thread design provides faster installation and superior resistance to vibration loosening
• Class 2A thread fit guarantees consistent, precise assembly and interchangeability with standard nuts
• Partially threaded shank with 2 1/4" grip length offers optimal clamping force and prevents joint slippage
• External hex drive and large 1 1/4" head width allow for high-torque application with standard tools, speeding up installation
• ASTM Grade B8 certification ensures material quality and performance reliability for critical industrial applications

Professional Applications & Engineering Value

This 3/4"-10 UNC hex head screw is engineered to solve critical challenges in heavy-duty industrial applications where strength and corrosion resistance are paramount. The 18-8 Stainless Steel material, combined with ASTM Grade B8 certification, provides excellent durability against chemical exposure and atmospheric corrosion, reducing downtime in sectors like chemical processing, marine equipment, and structural assemblies. The coarse thread and partial threading design enhance grip and load distribution, preventing shear failure in high-vibration environments such as machinery bases and construction frameworks. With its external hex drive, it ensures secure, high-torque fastening, making it a reliable choice for engineers seeking long-term performance in demanding settings.

Specification Summary & Compliance

This fastener adheres to Class 2A thread fit for consistent dimensional accuracy and features a 3/4"-10 UNC coarse thread with right-hand direction. It meets ASTM A193 specifications for high-temperature service and is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B100. The product complies with industry standards for material integrity and is suitable for applications requiring reliable performance under stress, though specific RoHS or REACH declarations should be verified per batch.