S-92949A722 1/2"-13 x 2 1/2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable performance in heavy-duty applications without failure.
- Precise Class 3A thread fit provides secure, vibration-resistant connections for critical assemblies.
- Easy installation and removal with a 5/16" hex drive, reducing assembly time and tool slippage.
- Full threading along the 2-1/2" length allows for maximum grip and adjustability in various material thicknesses.
- Durable Rockwell B55 hardness maintains thread integrity and resists wear during repeated use.
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for global supply chains.
Professional Applications & Engineering Value
This 1/2"-13 UNC rounded head screw is engineered to address common industrial challenges, such as corrosion-induced failures and assembly inefficiencies. Made from 18-8 stainless steel with a passivated finish, it resists rust and chemicals in demanding settings like machinery, marine equipment, and outdoor structures. The coarse UNC thread and Class 3A fit ensure quick, secure fastening in metals or plastics, reducing the risk of loosening under vibration. Its hex drive design and fully threaded body enable rapid installation with standard tools, boosting productivity in manufacturing and maintenance operations while meeting rigorous standards for reliability.
Specification Summary & Compliance
This screw features a 1/2"-13 UNC coarse thread with Class 3A precision for tight tolerances, a length of 2-1/2", and a rounded button head with a 5/16" hex drive. It complies with ASME B18.3 manufacturing specifications, ensuring dimensional accuracy and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, supporting safe and sustainable use in industrial applications.