S-91251A494 8-36 x 1/2" 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
- Superior 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 excellent engagement and vibration resistance, maintaining joint integrity in demanding environments.
- Black-oxide coating on alloy steel offers enhanced corrosion resistance, extending service life in various industrial conditions.
- Fine UNF thread spacing allows for finer adjustments and improved clamping force distribution in precision assemblies.
- Fully threaded design enables consistent holding power along the entire length, accommodating a wider range of material thicknesses.
- Hex socket drive facilitates easy installation with standard tools, reducing assembly time and minimizing strip-out risks.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency, environmental safety, and suitability for regulated industries.
Professional Applications & Engineering Value
Engineered for high-performance industrial assemblies, these 8-36 UNF socket head cap screws address critical challenges in machinery, automotive, and aerospace applications. The black-oxide alloy steel construction combats corrosion while the Class 3A fine thread ensures secure fastening in vibrating environments, preventing loosening. With a Rockwell C37 hardness and 170,000 psi tensile strength, they withstand extreme loads without deformation. The fully threaded design and hex drive simplify installation in confined spaces, reducing downtime and improving assembly efficiency for B2B technical procurement needs.
Specification Summary & Compliance
This socket head cap screw adheres to Class 3A thread fit for precise tolerance and UNF fine thread standards. Manufactured per 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, meeting environmental and safety requirements for industrial use.
