S-91849A029 1/4"-20 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Enhanced torque distribution and reduced risk of stripping due to the extra wide hex profile, providing a more secure and stable connection.
• Reliable and consistent thread engagement with Class 2B thread fit, ensuring smooth assembly and reducing cross-threading risks.
• Robust performance in high-vibration applications from the coarse (UNC) thread design, which resists loosening under dynamic loads.
• Broad compatibility with standard inch-system components using the common 1/4"-20 thread size, simplifying inventory and sourcing.
• Secure external hex drive allows for high-torque installation with common wrenches, speeding up assembly processes.
• Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for regulated industries.

Professional Applications & Engineering Value

This heavy-duty hex nut is engineered to solve common industrial challenges such as joint failure under stress and corrosion-induced degradation. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, making it suitable for outdoor, marine, and chemical-exposed applications. Its extra wide profile distributes clamping force more evenly, which minimizes surface damage and prevents loosening in high-vibration settings like machinery, automotive assemblies, and structural frameworks. The UNC coarse thread and Class 2B fit ensure quick, reliable installation with standard 1/4"-20 threaded bolts, reducing assembly time and improving overall system integrity. This nut is a dependable choice for engineers seeking durability, compliance, and performance in demanding industrial fastener applications.

Specification Summary & Compliance

This hex nut adheres to Unified Coarse (UNC) thread standards with a size of 1/4"-20 and a Class 2B thread fit for consistent dimensional accuracy. It features a right-hand thread direction, external hex drive, and is manufactured from 18-8 stainless steel. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for hazardous substance restrictions.