S-94819A100 1/4"-28 ASTM F594 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for marine, chemical, and outdoor applications.
• Precise, reliable fastening with Class 2B thread fit, ensuring smooth engagement and consistent clamp load for secure assemblies.
• Enhanced vibration resistance from the fine UNF thread profile, maintaining joint integrity in high-stress or dynamic conditions.
• Guaranteed material and performance quality through compliance with ASTM F594 standards, providing traceability and reliability.
• Easy installation and removal with a standard external hex drive and 7/16" width, compatible with common wrenches for efficient maintenance.
• Safe for regulated industries with full RoHS 3 and REACH compliance, meeting environmental and health safety requirements.
• Durable, long-lasting performance from the fine thread design and robust 7/32" height, reducing wear and replacement frequency.

Professional Applications & Engineering Value

This 1/4"-28 UNF hex nut in 316 stainless steel addresses critical challenges in demanding sectors like chemical processing, marine equipment, and food machinery, where corrosion from moisture, salts, or chemicals can cause fastener failure. The fine thread design enhances resistance to loosening under vibration, a common issue in automotive or industrial machinery, while the Class 2B thread fit ensures precise alignment and uniform stress distribution, minimizing the risk of cross-threading or galling during installation. Compliant with ASTM F594, it guarantees material integrity and performance consistency, supporting reliable assembly in high-corrosion environments and reducing maintenance downtime. The external hex drive and standard profile facilitate quick servicing, making it a versatile choice for OEMs and MRO applications requiring durable, compliant fasteners.

Specification Summary & Compliance

This hex nut features a 1/4"-28 UNF fine thread with Class 2B tolerance for consistent fit, adhering to ASTM F594 manufacturing standards. Dimensions include a 7/16" width and 7/32" height, with a right-hand thread direction and standard external hex drive. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.