S-91251A818 5/8"-11 x 6" 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 demanding applications, preventing fastener failure.
- Superior corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments.
- High-precision Class 3A thread fit ensures easy assembly and a secure, vibration-resistant connection.
- Robust Rockwell C37 hardness provides excellent wear resistance and durability under high stress.
- Partially threaded design allows for precise clamping force on specific sections, ideal for component positioning.
- 1/2" hex drive socket head offers high torque capability and a low-profile design for space-constrained assemblies.
- Compliance with major regulations including RoHS 3 and REACH, ensuring environmental and safety standards are met for global supply chains.
Professional Applications & Engineering Value
This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to solve critical challenges in heavy machinery, automotive, and construction assemblies. Its high tensile strength and Rockwell C37 hardness prevent stripping and shearing under extreme loads, while the black-oxide surface treatment provides a durable barrier against rust and corrosion, reducing maintenance needs. The coarse UNRC thread and Class 3A fit enable quick, secure fastening in high-vibration environments, ensuring long-term joint integrity. Ideal for use with 1/2" hex drive tools, this partially threaded fastener offers precise clamping control, making it a reliable choice for demanding industrial fastening applications where performance and compliance are paramount.
Specification Summary & Compliance
This socket head cap screw adheres to strict dimensional and performance standards, featuring a Class 3A thread fit for precision and a coarse 5/8"-11 UNRC thread. Manufactured in compliance with ASTM A574 specifications, it ensures consistent quality and reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting essential environmental and safety regulations for industrial use.
