S-93439A615 1/4"-28 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from silicon bronze material, ideal for harsh marine and industrial environments.
• Precise thread engagement with Class 2B fit, ensuring reliable fastening and reduced risk of cross-threading.
• Fine UNF thread design (1/4"-28) provides higher tensile strength and better vibration resistance than coarse threads.
• Easy installation and removal with standard external hex drive (7/16" width) using common wrench tools.
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, sustainable use.
• Durable, long-lasting performance with right-hand threading and compact 7/32" height for space-constrained applications.
• Interchangeable compatibility with inch-system components, adhering to UNF fine thread standards.

Professional Applications & Engineering Value

This silicon bronze hex nut is engineered to address critical challenges in corrosive settings where standard steel fasteners fail. Its marine-grade composition resists saltwater degradation, making it indispensable for boat fittings, offshore platforms, and coastal infrastructure. The UNF fine thread (1/4"-28) enhances load distribution and clamping force in high-vibration machinery, while the Class 2B thread fit guarantees consistent accuracy in assembly lines. With an external hex drive, installers achieve secure torque application without specialized tools, reducing downtime in industrial maintenance, chemical processing, and plumbing systems. Its compliance with RoHS and REACH further supports use in regulated sectors, ensuring environmental safety without compromising mechanical integrity.

Specification Summary & Compliance

This nut features a 1/4"-28 UNF fine thread with Class 2B tolerance for precise fit, manufactured to standard inch-system dimensions (7/16" width, 7/32" height). It conforms to UNF thread standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates. The right-hand thread direction and standard hex nut profile ensure broad interoperability with industry components.