S-95362A635 3/4"-10 x 2 1/2" ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-189 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 tensile strength of 150,000 PSI ensures reliable performance under extreme loads, reducing failure risks in critical applications.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh or outdoor industrial environments.
- High-strength Grade 8 classification with Rockwell C33 hardness provides excellent durability and resistance to wear and deformation.
- Coarse UNC threading allows for faster installation and better grip in a variety of materials, improving assembly efficiency.
- Class 2A thread fit ensures consistent, precise engagement with nuts and tapped holes, minimizing cross-threading and rework.
- Full threading along the 2 1/2" length offers versatile fastening depth and secure holding power across the entire bolt.
- External hex drive design enables easy installation and removal with standard tools, reducing labor time and maintenance costs.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address demanding industrial challenges where high tensile strength and corrosion resistance are paramount. The steel construction and zinc yellow-chromate plating provide a robust barrier against rust and chemical exposure, making it ideal for heavy machinery, structural assemblies, and outdoor equipment. The 3/4"-10 UNC coarse thread ensures quick, secure fastening in thick materials or where vibration resistance is critical, while the external hex drive allows for high-torque applications without stripping. By meeting rigorous standards like ASME B18.2.1 and SAE J429, this fastener delivers consistent performance in construction, automotive, and manufacturing sectors, reducing downtime and maintenance needs.
Specification Summary & Compliance
This hex head screw adheres to precise dimensional tolerances, including Class 2A thread fit for reliable compatibility. It conforms to ASME B18.2.1, SAE J429, ASTM A354BD, and MS90728-189 specifications, ensuring uniformity and safety in industrial use. The product is REACH (EC 1907/2006) compliant, supporting environmental and health standards without compromising on performance.
