S-92210A711 1/2"-13 x 7/8" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive Flat 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
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments.
- High tensile strength of 70,000 psi and Rockwell B55 hardness for dependable performance in demanding industrial applications.
- Precise Class 3A thread fit provides secure, vibration-resistant fastening with minimal risk of loosening.
- Efficient hex drive design (5/16") allows for quick installation and high torque application without slippage.
- Standard 82° countersink angle ensures a flush, professional finish when seated in corresponding chamfered holes.
- Full threading along the 7/8" length offers maximum grip and adjustability across the entire fastener.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these 1/2"-13 UNC flat head screws address critical needs for durability and precision. The 18-8 stainless steel material combined with a passivated finish provides excellent resistance to corrosion and oxidation, making them ideal for machinery, structural assemblies, and outdoor equipment. The coarse UNC threads and Class 3A fit ensure rapid installation and reliable holding power, reducing assembly time and maintenance costs. The hex drive design facilitates high-torque tightening in confined spaces, while the flat head with 82° countersink creates a smooth, flush surface that minimizes protrusion and improves safety. These screws are trusted in sectors requiring robust fastening solutions that meet stringent ASME B18.3 specifications.
Specification Summary & Compliance
This flat head screw features a 1/2"-13 UNC coarse thread with Class 3A tolerance for precise fit, fully threaded along a 7/8" length. It conforms to ASME B18.3 (referencing ASTM F879) for dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets current environmental and safety regulations for hazardous substances.
