S-94967A502 5/16"-18 x 2" ASME B18.2.1, ASTM B117, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex Head Screws
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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 120,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion protection through black corrosion-resistant coating, extending service life in demanding environments
- Precise thread engagement with Class 2A thread fit ensuring consistent installation and vibration resistance
- Optimized drive efficiency featuring external hex design for secure tool engagement and torque transmission
- Enhanced durability with Rockwell C25 hardness providing excellent wear resistance and thread integrity
- Broad compatibility through UNC coarse threading for faster installation and reduced cross-threading risks
- Full-threaded design offering maximum grip length and uniform stress distribution along the entire fastener
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Grade 5 hex head screws deliver exceptional performance in construction, machinery assembly, and heavy equipment manufacturing. The black corrosion-resistant coated steel construction provides critical protection against environmental degradation, while the UNC coarse thread spacing ensures rapid installation and superior resistance to vibration loosening. With fully threaded design and external hex drive, these fasteners offer maximum clamping force and easy installation using standard tools. The combination of 120,000 psi tensile strength and Rockwell C25 hardness makes them ideal for structural connections where reliability and durability are paramount, effectively solving common challenges of joint failure and corrosion in harsh operating conditions.
Specification Summary & Compliance
These 5/16"-18 UNC hex head screws feature Class 2A thread fit precision and comply with ASME B18.2.1, ASTM B117, and SAE J429 manufacturing specifications. The fasteners maintain full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the latest industry standards for safety and environmental responsibility while delivering consistent dimensional accuracy and performance reliability.
