S-92220A271 1/2"-13 x 3/4" ASTM A574 Alloy Steel Low-Profile Socket Head Screws
Alloy Steel Low-Profile 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 strength and durability with 140,000 psi tensile strength and Rockwell C39 hardness, ideal for high-stress applications
- Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments
- Precise thread engagement with Class 3A thread fit, ensuring reliable fastening and vibration resistance
- Space-saving low-profile socket head allows installation in confined areas while providing secure hex drive engagement
- Full thread coverage along the 3/4" length for maximum grip and uniform load distribution
- Wide industrial compatibility with UNC coarse threads and right-hand direction, facilitating quick assembly and disassembly
- Regulatory compliance assurance meeting ASTM A574, RoHS 3, and REACH standards for safe, quality-driven procurement
Professional Applications & Engineering Value
This 1/2"-13 UNC Socket Head Cap Screw delivers critical performance in demanding engineering scenarios where failure is not an option. The black-oxide alloy steel construction provides enhanced resistance to corrosion and wear, addressing common degradation issues in manufacturing, machinery, and automotive assemblies. Its low-profile socket head with a 1/4" hex drive enables secure tightening in limited-clearance applications, preventing stripping and ensuring consistent clamp load. The Class 3A thread fit and coarse UNC thread design offer superior vibration resistance and ease of installation, reducing maintenance downtime. Engineered to ASTM A574 specifications, it supports heavy-duty fastening in structural frames, industrial equipment, and high-torque applications, providing long-term reliability and operational safety.
Specification Summary & Compliance
This socket head cap screw features a 1/2"-13 UNC coarse thread with Class 3A precision tolerance for accurate fit. It is fully threaded with a right-hand direction and manufactured from alloy steel with a black-oxide surface treatment. The product complies with ASTM A574 manufacturing standards and is verified as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence for industrial use.
