S-91864A057 8-36 x 5/8" 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 under high-stress conditions, reducing the risk of fastener failure.
- Class 3A thread fit provides superior precision and tighter tolerances for secure, vibration-resistant assemblies in demanding applications.
- Black-oxide finish on alloy steel offers enhanced corrosion resistance, extending service life in harsh industrial environments.
- Fine UNF threads deliver improved clamping force and better load distribution compared to coarse threads, ideal for precision equipment.
- Hex socket drive design allows for high-torque installation with minimal risk of stripping, ensuring efficient assembly and maintenance.
- Full compliance with ASTM A574, RoHS 3, and REACH guarantees material consistency, environmental safety, and regulatory acceptance for global supply chains.
- Rockwell C37 hardness balances durability with machinability, preventing deformation under heavy loads while facilitating installation.
Professional Applications & Engineering Value
Engineered for precision and durability, these 8-36 UNF socket head cap screws address critical challenges in high-stress assemblies. The black-oxide alloy steel construction combats corrosion in humid or chemically aggressive settings, while the fine thread and Class 3A fit minimize backlash in machinery, automotive, and aerospace components. Their hex drive enables secure fastening in confined spaces, reducing installation time and improving reliability. Ideal for industrial fasteners requiring consistent clamping force and vibration resistance, these screws support long-term operational integrity without frequent maintenance.
Specification Summary & Compliance
This screw meets Class 3A thread tolerances per UNF standards, ensuring precise fit. Manufactured in accordance with ASTM A574 for material integrity, it is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, adhering to environmental and safety regulations. Dimensions include a 5/8" length and 9/64" hex drive, with right-hand fine threading for uniform load distribution.
