S-92949A751 1/2"-20 x 1" 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.
- Exceptional tensile strength rated at 70,000 psi, ensuring reliable performance under high-stress conditions.
- Precise Class 3A thread fit for tighter tolerances and secure fastening in critical applications.
- Easy installation and removal with a 5/16" hex drive, reducing assembly time and tool slippage.
- Fully threaded design provides consistent grip along the entire 1" length for uniform clamping force.
- Fine thread spacing (UNF) offers improved adjustment accuracy and vibration resistance.
- Compliance with ASME B18.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, these 1/2"-20 UNF Class 3A rounded head screws address common challenges like vibration loosening and corrosion. The 18-8 stainless steel material combined with a passivated finish significantly enhances durability against moisture and chemicals, reducing maintenance needs. The fine thread spacing and Class 3A fit ensure precise alignment and secure fastening in machinery, automotive assemblies, and precision equipment. With a hex drive for efficient torque application, these screws are ideal for applications requiring high strength and reliability, such as in aerospace, marine, and manufacturing industries, where consistent performance is critical.
Specification Summary & Compliance
This product features a 1/2"-20 UNF thread with Class 3A tolerance for high precision, fully threaded along a 1" length. It complies with ASME B18.3 manufacturing standards and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations. Additional specifications include a Rockwell B55 hardness and right-hand threading for standard applications.
