S-91236A847 3/4"-10 x 3" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws
Low-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
- Superior corrosion resistance with zinc plating, extending service life in harsh industrial environments
- High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B69 hardness provides excellent durability and resistance to wear and deformation
- Coarse UNC threads with Class 2A fit enable faster assembly and reduced cross-threading risks
- External hex drive and 1 1/8" head width offer secure, high-torque installation with standard tools
- Partially threaded 3" length design allows for precise clamping force in structural applications
- Full compliance with ASME B18.2.1 and ASTM A307 guarantees consistent quality and interchangeability
Professional Applications & Engineering Value
This 3/4"-10 UNC hex head screw delivers critical engineering value through its high-strength steel construction and zinc-plated finish, specifically engineered to combat corrosion in demanding industrial settings. The coarse thread design and Class 2A thread fit significantly reduce installation time while preventing thread stripping in heavy machinery, structural steel connections, and construction applications. With partial threading and 60,000 psi tensile strength, it provides optimal clamp load distribution where full thread engagement isn't required, making it ideal for industrial fastening in manufacturing plants, infrastructure projects, and equipment assembly where vibration resistance and long-term reliability are paramount.
Specification Summary & Compliance
Manufactured to ASME B18.2.1 specifications with ASTM A307 material standards, this hex head screw features precise UNC coarse threads with Class 2A tolerance for consistent fit. The fastener maintains dimensional accuracy with 3/4"-10 thread size, 1 3/4" minimum thread length, and 3" overall length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
