S-91268A851 3/4"-10 x 2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 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 150,000 PSI tensile strength, ideal for high-stress industrial applications
- Superior durability and wear resistance due to Grade 8 steel construction and Rockwell C33 hardness
- Reliable coarse UNC threading ensures quick assembly and secure fastening in demanding environments
- Precise Class 2A thread fit guarantees consistent performance and easy installation with standard tools
- Full threading along the 2" length provides maximum grip and uniform stress distribution
- External hex drive design allows for high-torque application with common wrenches
- Compliance with major industry standards including ASME B18.2.1 and SAE J429 for assured quality
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 8 hex head screw delivers exceptional performance where failure is not an option. The 3/4"-10 UNC coarse thread configuration provides superior resistance to vibration loosening, making it ideal for machinery, structural steel connections, and automotive assemblies. Manufactured from high-strength steel with Rockwell C33 hardness, it withstands extreme mechanical stresses and environmental challenges. The fully threaded design ensures maximum engagement in thick materials, while the external hex drive facilitates efficient installation with standard tools. These hex head screws are specifically engineered to solve vibration, corrosion, and high-load challenges in manufacturing, construction, and equipment maintenance applications.
Specification Summary & Compliance
This 3/4"-10 UNC hex head screw features Class 2A thread fit for precise dimensional accuracy and meets ASME B18.2.1 and SAE J429 manufacturing specifications. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. With a 2" length and fully threaded construction in the inch system, it maintains consistent performance in accordance with industry standards for heavy-duty fastening applications.
