S-91251A830 8-36 x 1 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
- Exceptional tensile strength of 170,000 psi for reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments and minimizing maintenance needs.
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash, ideal for precision assemblies requiring fine thread accuracy.
- High hardness rating (Rockwell C37) provides excellent wear resistance and durability, maintaining integrity under repeated use.
- Hex socket drive design allows for easy installation and removal with standard tools, improving assembly efficiency and reducing downtime.
- Compliance with ASTM A574, RoHS 3, and REACH standards guarantees material quality and environmental safety, meeting rigorous industry regulations.
- Partially threaded shank offers optimal grip and alignment in applications where controlled clamping force is critical.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 8-36 UNF socket head cap screws address common challenges like vibration loosening and corrosion in machinery, automotive, and aerospace assemblies. The black-oxide alloy steel construction, combined with a fine thread and Class 3A fit, ensures consistent clamping force and resistance to environmental degradation. This makes them ideal for precision equipment, where the hex drive facilitates quick maintenance without compromising tensile strength. By integrating high-performance materials and strict compliance, these screws reduce lifecycle costs and enhance reliability in critical fastening solutions.
Specification Summary & Compliance
This product adheres to Class 3A thread tolerances for precise fit and is manufactured in accordance with ASTM A574 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met. The UNF fine thread type and right-hand threading provide consistent performance in industrial applications.
