S-95362A352 3/8"-16 x 2 1/2" ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-68 Mil. Spec. High-Strength Steel Hex Head Screws
Mil. Spec. High-Strength 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 capability with 150,000 psi tensile strength for reliable performance in heavy-duty applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
- Optimized thread engagement through partially threaded UNC coarse design for secure fastening and vibration resistance
- High-strength Grade 8 classification with Rockwell C33 hardness for maximum durability under extreme conditions
- Precise dimensional control with Class 2A thread fit ensuring consistent installation and compatibility
- Easy installation and removal with external hex drive design for efficient maintenance operations
- Industry-standard compliance meeting multiple specifications for guaranteed quality and interchangeability
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value through its high-strength steel construction and zinc yellow-chromate plating, specifically engineered to withstand extreme mechanical stresses in industrial environments. The 3/8"-16 UNC coarse thread configuration combined with partial threading provides optimal clamping force distribution while preventing thread stripping in soft materials. This design addresses common industrial challenges including vibration-induced loosening, corrosion degradation, and structural fatigue. Ideal for heavy machinery assembly, construction equipment, and structural frameworks, this fastener maintains integrity under continuous load cycles while the corrosion-resistant finish ensures long-term reliability in outdoor or chemically aggressive settings.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 3/8"-16 UNC coarse thread specifications. Complies with ASME B18.2.1, SAE J429, and ASTM A354BD standards, ensuring dimensional accuracy and mechanical performance. Meets REACH (EC 1907/2006) compliance requirements for environmental safety. Features Rockwell C33 hardness and 150,000 psi tensile strength as per Grade 8 classification standards.
