S-92941A578 5/16"-18 x 1/2" ASME B18.2.1 Brass Hex Head Screws
Brass Hex 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 thanks to brass construction, ensuring long-term reliability in harsh environments
- Excellent tensile strength of 50,000 psi provides reliable load-bearing capacity for demanding industrial applications
- Rockwell B55 hardness offers optimal durability and resistance to wear during installation and use
- Class 2A thread fit with UNC coarse threading ensures easy assembly and secure fastening in various materials
- Fully threaded design delivers maximum grip and holding power across the entire screw length
- External hex drive with standard 1/2" head width allows for quick installation using common tools
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards
Professional Applications & Engineering Value
This 5/16"-18 UNC brass hex head screw delivers exceptional engineering value in industrial settings where corrosion resistance and mechanical strength are critical. The brass material prevents rust and galvanic corrosion, making it ideal for marine, plumbing, and electrical applications. With its coarse UNC threading and Class 2A fit, it provides reliable engagement in soft materials and reduces cross-threading risks. The external hex drive ensures efficient installation with standard wrenches, while the fully threaded design maximizes clamping force. These features address common assembly challenges, offering a durable, compliant fastener solution for OEM and maintenance applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit with 5/16"-18 UNC coarse threading in the inch system, ensuring dimensional accuracy per ASME B18.2.1 standards. It is manufactured to deliver consistent performance with a tensile strength of 50,000 psi and Rockwell B55 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety requirements for industrial use.
