S-94705A748 5/8"-11 x 4 1/4" ASTM A193 Steel Heavy Hex Head Screws for High-Pressure Applications
Steel Heavy Hex Head Screws for High-Pressure Applications
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 125,000 PSI tensile strength for reliable performance in high-stress applications
- Superior durability and corrosion resistance through ASTM Grade B7 steel construction and Rockwell C35 hardness
- Optimized thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
- Easy installation and removal with standard 1 1/16" external hex head design for common tool compatibility
- Controlled thread distribution through partially threaded design preventing stress concentration in non-critical sections
- Precise dimensional accuracy with inch system measurements meeting industrial assembly requirements
- Industry-standard compliance with ASTM A193 specifications for consistent quality and performance
Professional Applications & Engineering Value
This Grade B7 steel hex head screw delivers critical performance where failure is not an option. The combination of 125,000 PSI tensile strength and Rockwell C35 hardness provides exceptional resistance to mechanical stress and elongation, making it ideal for pressure vessels, structural connections, and heavy machinery. The partially threaded design with UNC coarse threads ensures optimal clamp load distribution while the external hex drive allows for high-torque installation without stripping. Engineered to withstand extreme temperatures and corrosive environments common in industrial settings, these ASTM A193 compliant fasteners offer reliable, long-term fastening solutions for critical infrastructure projects.
Specification Summary & Compliance
Manufactured to exacting standards with Class 2A thread fit tolerance for consistent assembly performance. The 5/8"-11 UNC coarse thread configuration ensures proper engagement while the 4 1/4" length with 2 3/4" grip length provides versatile application coverage. Compliant with ASTM A193 specification for high-temperature service and manufactured from ASTM Grade B7 steel for guaranteed mechanical properties. All dimensions conform to inch system requirements for seamless integration with existing industrial equipment and tooling.
