S-92579A109 5/16"-18 x 1" ASTM A193, ASTM A574 High-Temperature Alloy Steel Socket Head Screws—Grade B7
High-Temperature Alloy Steel Socket Head Screws—Grade B7
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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 high-temperature performance with maximum service temperature of 1100°F, ideal for demanding thermal environments
- Superior tensile strength rated at 125,000 psi for reliable load-bearing capacity in critical applications
- Precision Class 2A thread fit ensures smooth installation and secure fastening with consistent engagement
- Robust ASTM Grade B7 alloy steel construction delivers excellent durability and resistance to mechanical stress
- Standard hex socket drive design provides secure tool engagement and prevents stripping during installation
- Full threading along the entire 1" length offers maximum adjustability and clamping force distribution
- Comprehensive regulatory compliance including RoHS 3 and REACH for environmentally conscious manufacturing
Professional Applications & Engineering Value
These ASTM Grade B7 alloy steel socket head cap screws are engineered to solve critical fastening challenges in high-stress industrial environments. The 5/16"-18 UNC coarse thread configuration combined with Class 2A thread fit provides excellent vibration resistance and prevents loosening in dynamic applications. The alloy steel construction with Rockwell C26 hardness ensures exceptional durability under heavy loads, while the 1100°F temperature rating makes these fasteners ideal for high-heat applications including machinery, pressure vessels, and industrial equipment. The 1/4" hex drive socket head design allows for precise installation in confined spaces, making them perfect for assembly lines and maintenance operations where reliability is paramount.
Specification Summary & Compliance
Manufactured to ASTM A193 specification with Class 2A thread fit and UNC coarse thread profile for consistent dimensional accuracy. These socket head cap screws feature 5/16"-18 thread size with 0.3125" thread diameter and 1" fully threaded length. The fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the latest industry standards for hazardous substance restrictions and chemical safety.
