S-91251A134 5/8"-11 x 10" 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 extreme loads, reducing the risk of fastener failure in demanding applications.
- Superior corrosion resistance from the black-oxide finish prolongs service life and maintains integrity in harsh industrial environments.
- Precise Class 3A thread fit guarantees tight, secure connections with minimal play, enhancing assembly accuracy and vibration resistance.
- High torque capability with the 1/2" hex drive allows for efficient installation and removal, saving time and labor in maintenance operations.
- Robust alloy steel construction with Rockwell C37 hardness provides excellent durability and wear resistance for long-term use.
- Coarse UNRC threading enables quick engagement and reduced cross-threading risks, speeding up assembly in coarse-fit applications.
- Compliance with environmental standards including RoHS 3 and REACH ensures safe, sustainable use across global industrial sectors.
Professional Applications & Engineering Value
This black-oxide alloy steel socket head cap screw is engineered to address critical challenges in heavy machinery, automotive, and construction sectors, where high tensile strength and corrosion resistance are paramount. The Class 3A thread fit and coarse UNRC thread type minimize loosening under vibration, while the 1/2" hex drive facilitates high-torque applications without stripping. Ideal for partially threaded configurations, it ensures secure clamping in assemblies requiring precise load distribution. The ASTM A574 specification guarantees consistency, making it a reliable choice for engineers seeking durable, compliant fasteners that reduce maintenance downtime and enhance structural integrity in industrial applications.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit tolerances for precise engagement, with 5/8"-11 coarse UNRC threads and a minimum thread length of 1 3/4". Manufactured in compliance with ASTM A574 standards, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material consistency for industrial use.
