S-92941A535 1/4"-20 x 3/8" 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, ideal for harsh environments and moisture-prone applications
- Exceptional mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for reliable, long-lasting fastening
- Effortless installation and removal with a standard external hex drive and 7/16" head width for common tool compatibility
- Optimal thread engagement provided by the UNC coarse thread and Class 2A fit, ensuring secure connections and reducing cross-threading risks
- Maximum grip and holding power from the fully threaded design along the entire 3/8" length
- Guaranteed quality and interchangeability through compliance with the rigorous ASME B18.2.1 standard
- Safe for regulated industries with full RoHS 3 and REACH compliance, meeting environmental and health standards
Professional Applications & Engineering Value
This 1/4"-20 UNC brass hex head screw is engineered to solve critical challenges in industrial and marine environments where corrosion resistance is paramount. The brass material inherently resists rust and galvanic corrosion, making it ideal for plumbing, electrical enclosures, and outdoor equipment. The combination of 50,000 psi tensile strength and Rockwell B55 hardness ensures that these fully threaded fasteners maintain clamp load under vibration and thermal cycling, preventing joint failure. The coarse UNC thread and Class 2A thread fit provide quick assembly and reliable performance in softer materials or where repeated disassembly is required. With an external hex drive, installers benefit from high torque application without slippage, enhancing efficiency in high-volume production or maintenance scenarios.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC thread with a Class 2A thread fit, ensuring standard dimensional accuracy and interchangeability. It is manufactured to meet the ASME B18.2.1 specification for hex head screws. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for use in regulated markets.
