S-94705A773 3/4"-10 x 7" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications

Key Features & Benefits at a Glance

• Exceptional tensile strength of 125,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• ASTM Grade B7 steel construction provides superior durability and corrosion resistance, extending service life in harsh environments.
• Partially threaded design with 5" grip length offers optimal clamping force distribution, preventing joint loosening under vibration.
• Class 2A thread fit and UNC coarse threading enable quick assembly and disassembly while maintaining secure fastening in coarse-grained materials.
• Rockwell C35 hardness enhances wear resistance, minimizing deformation during repeated tightening cycles.
• External hex drive and 1 1/4" head width allow for easy installation with standard tools, reducing assembly time and labor costs.
• ASTM A193 compliance guarantees consistent quality and material integrity for critical high-temperature and pressure applications.

Professional Applications & Engineering Value

This 3/4"-10 UNC hex head screw is engineered to address common industrial challenges such as vibration-induced loosening and material fatigue. Manufactured from ASTM Grade B7 steel, it combines high tensile strength (125,000 psi) with Rockwell C35 hardness to withstand extreme mechanical loads and thermal cycling in applications like pressure vessel assemblies, structural frameworks, and heavy machinery. The partially threaded design with a 2" thread length and 5" grip length ensures precise load distribution, preventing stress concentration at the thread root. Its coarse UNC threading and external hex drive facilitate rapid installation in steel and other coarse-grained materials, making it ideal for maintenance, construction, and OEM equipment where reliability and compliance with ASTM A193 specifications are critical.

Specification Summary & Compliance

This fastener adheres to Class 2A thread fit tolerances and UNC coarse thread standards with a 3/4"-10 thread size. It meets ASTM A193 specifications for material composition and mechanical properties, ensuring consistent performance in high-temperature and high-pressure environments. The screw is manufactured in the inch system with precise dimensions: 7" overall length, 2" thread length, and 5" grip length. Compliance with industry standards guarantees reliability for industrial and engineering applications requiring high-strength steel fasteners.