S-92941A540 1/4"-20 x 3/4" 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 from high-quality brass construction, ideal for humid or demanding industrial environments.
- Excellent machinability and electrical conductivity for versatile use in electrical assemblies and precision applications.
- High tensile strength of 50,000 psi ensures a reliable and secure hold in high-stress applications.
- Rockwell B55 hardness provides excellent durability and resistance to wear and deformation.
- Coarse UNC threading with Class 2A fit allows for faster assembly and easier alignment, reducing installation time.
- External hex drive design offers a common and secure interface for standard tools, ensuring straightforward installation and removal.
- Full threading along the 3/4" length maximizes grip and load distribution across the entire fastened joint.
Professional Applications & Engineering Value
This 1/4"-20 UNC hex head screw is engineered from solid brass to address common industrial challenges like corrosion and galvanic incompatibility. Its coarse thread design is particularly effective in softer materials or applications requiring rapid assembly, preventing cross-threading and ensuring a consistent, reliable fit. The combination of Rockwell B55 hardness and 50,000 psi tensile strength makes it a robust industrial fastener for machinery, electrical enclosures, and plumbing systems where both mechanical integrity and non-sparking properties are valued. The external hex drive provides a familiar and torque-resistant interface, streamlining maintenance and assembly processes in professional settings.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC thread with a Class 2A thread fit for standard clearance and ease of assembly. It is manufactured to meet the dimensional requirements of ASME B18.2.1 and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated markets.
