S-94705A433 3/4"-10 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 applications, reducing the risk of fastener failure.
- High-temperature and pressure resistance due to ASTM Grade B7 steel composition, ideal for demanding industrial environments.
- Coarse UNC threading with Class 2A fit provides easy installation and secure fastening, minimizing cross-threading issues.
- Partially threaded design offers superior grip length for precise clamping force distribution in assembled components.
- Rockwell C35 hardness enhances durability and wear resistance, extending service life under repetitive loads.
- External hex drive and 1 1/4" head width allow for high-torque application with standard tools, speeding up assembly processes.
- Compliance with ASTM A193 specifications guarantees material integrity and performance consistency for critical applications.
Professional Applications & Engineering Value
This 3/4"-10 UNC Grade B7 steel hex head screw is engineered to address critical challenges in high-pressure and high-temperature settings, such as petrochemical, power generation, and heavy machinery assemblies. The ASTM A193 compliant steel construction ensures stability under thermal cycling, while the coarse thread design and Class 2A fit reduce installation time and prevent loosening in vibrating environments. With partial threading, it provides optimal stress distribution, minimizing the risk of joint fatigue. Ideal for industrial fasteners requiring 125,000 PSI tensile strength, this screw delivers reliable performance in corrosive or extreme service conditions, enhancing operational safety and reducing maintenance costs.
Specification Summary & Compliance
This fastener adheres to ASTM A193 standards for material and manufacturing, with UNC coarse threads and Class 2A thread fit ensuring dimensional accuracy. It meets specified requirements for inch system measurements, including a 4" length and 1 3/4" thread length, and complies with industry regulations for high-strength applications, supporting reliability in engineering projects.
