S-92941A728 1/2"-13 x 4" 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 with brass construction, ideal for harsh environments and moisture-prone applications
- High tensile strength of 50,000 psi ensures reliable performance under heavy loads and mechanical stress
- Rockwell B55 hardness provides excellent durability and resistance to wear over extended use
- External hex drive design allows for easy installation and removal with standard tools, reducing assembly time
- Class 2A thread fit offers consistent, reliable engagement with standard UNC nuts and threaded holes
- Partially threaded shank provides optimal clamping force and vibration resistance in structural applications
- Compliance with ASME B18.2.1 ensures dimensional accuracy and interchangeability with other standard components
Professional Applications & Engineering Value
This 1/2"-13 UNC brass hex head screw delivers exceptional engineering value in demanding industrial environments where corrosion resistance and mechanical reliability are critical. The brass material provides natural resistance to galvanic corrosion and chemical degradation, making it ideal for marine equipment, plumbing systems, and electrical enclosures. The coarse UNC thread design ensures quick assembly and superior holding power in soft materials or applications subject to vibration. With its external hex drive and partially threaded configuration, this fastener offers optimal clamping force distribution while preventing thread damage during installation. These characteristics make it particularly valuable in maintenance operations, OEM manufacturing, and infrastructure projects where long-term performance and regulatory compliance are essential.
Specification Summary & Compliance
This 4" length hex head screw features precise Class 2A thread fit with 1/2"-13 UNC coarse threading and partial threading along a 1 1/4" minimum thread length. Manufactured to ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
