S-92941A554 1/4"-20 x 3" 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 from brass material, ideal for harsh environments and reducing maintenance costs
- High mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
- Precise thread engagement with Class 2A UNC coarse threading ensuring secure fastening and vibration resistance
- Easy installation and removal using standard external hex drive and 7/16" head width for efficient assembly
- Optimized thread design with 3/4" minimum thread length providing maximum grip in various material thicknesses
- Regulatory compliance assurance meeting ASME B18.2.1 standards for dimensional accuracy and quality
- Environmental safety with RoHS 3 and REACH compliance for sustainable industrial applications
Professional Applications & Engineering Value
This 1/4"-20 UNC brass hex head screw delivers exceptional engineering value in demanding industrial environments where corrosion resistance and mechanical stability are critical. The brass construction prevents rust and galvanic corrosion, making it ideal for marine, plumbing, and electrical applications. The coarse UNC threading with Class 2A fit ensures rapid assembly and reliable performance in soft materials or where vibration resistance is required. The partially threaded design combined with 3" length provides versatile clamping capability across various material thicknesses, while the external hex drive allows for high-torque installation using standard tools. These features make it particularly valuable in industrial maintenance, equipment assembly, and corrosion-prone applications where long-term reliability is essential.
Specification Summary & Compliance
This brass hex head screw features precise Class 2A thread fit with 1/4"-20 UNC coarse threading and 3/4" minimum thread length. Manufacturing complies with ASME B18.2.1 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations for environmental safety and restricted substance control.
