S-91274A088 8-32 x 2" ASME B18.3, ASTM A574, ASTM B117 Alloy Steel Socket Head Screws
Alloy Steel Socket 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 corrosion resistance with zinc-flake coating, ideal for harsh industrial environments and outdoor applications
- High tensile strength of 170,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 3A thread fit provides superior engagement and reduces the risk of cross-threading during assembly
- Rockwell C37 hardness offers excellent wear resistance and durability for long-term use
- Standard hex drive (9/64") design allows for easy installation with common tools in confined spaces
- Partially threaded shank enables secure clamping without unnecessary thread engagement
- Compliance with major industry standards including ASME B18.3 and ASTM A574 guarantees consistent quality and interoperability
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 8-32 UNC socket head cap screws combine zinc-flake-coated alloy steel construction with coarse thread spacing to deliver optimal performance in machinery assembly, automotive components, and electrical enclosures. The right-hand thread design ensures standard compatibility while the partially threaded rod configuration prevents thread damage in through-hole applications. With 170,000 psi tensile strength and Rockwell C37 hardness, these fasteners maintain structural integrity under dynamic loads and repetitive stress, solving common failure points in heavy equipment and precision instruments. The hex drive socket head profile facilitates secure torque application in space-constrained installations, making them ideal for maintenance and OEM applications where reliability is critical.
Specification Summary & Compliance
This socket head cap screw features Class 3A thread fit per UNC standards with 2" length and minimum 7/8" thread length. Manufactured in compliance with ASME B18.3 dimensional specifications and ASTM A574 material standards. Corrosion resistance verified per ASTM B117 testing. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe industrial use.
