S-94705A516 7/8"-9 x 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 tensile strength of 125,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
- High hardness rating (Rockwell C35) provides superior resistance to wear and deformation, extending service life in demanding environments.
- Coarse UNC threading with Class 2A fit offers quick assembly and secure fastening, minimizing installation time while maintaining precision.
- Partially threaded design allows for controlled clamping force, ideal for applications where specific grip length is critical.
- External hex drive and hex head facilitate easy installation and removal with standard tools, enhancing maintenance efficiency.
- Manufactured from high-quality steel in compliance with ASTM A193, ensuring consistent material properties and batch-to-batch reliability.
- 4-inch length with 2-inch thread and grip provides versatile sizing for robust connections in construction and heavy machinery.
Professional Applications & Engineering Value
This ASTM Grade B7 hex head screw is engineered to address critical challenges in industrial and construction settings, where high tensile strength and durability are non-negotiable. The steel material and Rockwell C35 hardness combat issues like shear stress and environmental wear, common in heavy-duty fastening. Its coarse UNC thread and Class 2A fit ensure rapid, secure installations without cross-threading, reducing downtime in assembly lines. Partially threaded with a precise 2-inch grip length, it provides optimal clamping in structural applications, from machinery bases to pipeline flanges, meeting ASTM A193 specifications for consistent performance under extreme loads.
Specification Summary & Compliance
This screw adheres to inch system measurements with a 7/8"-9 UNC coarse thread and Class 2A thread fit for standardized precision. It complies with ASTM A193 specifications for high-temperature service and is manufactured from steel to ensure reliability in industrial applications. Key dimensions include a 4-inch length, 2-inch thread length, and external hex drive for compatibility with common tools, supporting consistent performance in regulated environments.
