S-91251A337 10-32 x 5/16" ASTM A574 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 tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, ideal for fine thread spacing requirements.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance and a durable, non-reflective finish for harsh environments.
- Rockwell C37 hardness delivers excellent wear resistance, maintaining thread integrity and extending service life.
- Hex socket drive design allows for high torque application and easy installation in confined spaces with standard tools.
- Full threading along the 5/16" length ensures maximum grip and adjustability in precision assemblies.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety for global industrial use.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw with a 10-32 UNRF fine thread and Class 3A fit is engineered to address critical challenges in precision machinery, automotive, and aerospace sectors. The fine thread spacing enhances load distribution and minimizes loosening under vibration, while the high tensile strength and Rockwell C37 hardness prevent stripping and deformation in high-torque applications. Its hex drive socket facilitates secure fastening in tight spaces, making it a reliable choice for assemblies demanding exact alignment and durability. Ideal for use in equipment requiring reliable fastening solutions with consistent performance, this screw ensures long-term operational integrity and reduced maintenance needs.
Specification Summary & Compliance
This socket head cap screw features a 10-32 UNRF thread with Class 3A tolerance for precise fit, a length of 5/16", and is manufactured from alloy steel with a black-oxide surface treatment. It meets ASTM A574 specifications for high-strength fasteners and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial applications.
