S-91864A056 8-36 x 3/4" 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.
- Precision Class 3A thread fit provides superior engagement and vibration resistance, enhancing assembly integrity in demanding environments.
- Black-oxide finish on alloy steel offers corrosion resistance and a durable surface, extending service life in industrial settings.
- Fine UNF threads deliver improved clamping force and better adjustment precision compared to coarse threads.
- Fully threaded design allows for maximum grip length and versatility in various material thicknesses.
- Hex socket drive enables easy installation with standard tools, minimizing stripping and improving torque application.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety for global supply chain requirements.
Professional Applications & Engineering Value
These 8-36 UNF socket head cap screws are engineered to address critical challenges in precision machinery, automotive, and aerospace assemblies. The black-oxide alloy steel construction provides excellent resistance to wear and environmental factors, while the fine thread and Class 3A fit ensure tight tolerances and reduced loosening under dynamic loads. With a Rockwell C37 hardness and high tensile strength, they prevent stripping and deformation in high-torque applications, making them ideal for industrial fasteners where reliability and compliance with ASTM A574 standards are paramount. The fully threaded and right-hand thread design offers consistent performance in automated or manual installations, streamlining production efficiency.
Specification Summary & Compliance
This socket head cap screw features a Class 3A thread fit for precise engagement, adhering to UNF fine thread standards with a thread size of 8-36. Manufactured to meet ASTM A574 specifications, it ensures consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility in industrial use.
