S-90521A043 1 3/4"-5 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with ASTM Grade 2H strength classification, ensuring reliable performance under high-stress conditions.
• Enhanced wrench grip and reduced slipping due to the extra wide hex profile and external hex drive design.
• Quick and easy installation facilitated by the coarse UNC thread and Class 2B thread fit, minimizing assembly time.
• Superior corrosion resistance and longevity from high-quality steel construction, suitable for harsh industrial environments.
• Compliance with rigorous industry standards including ASTM A194, ensuring consistent quality and engineering reliability.
• Environmental and workplace safety through RoHS 3 and REACH compliance, meeting global regulatory requirements.
• Robust dimensional stability with precise 1 3/4"-5 thread size and 2 3/4" width, providing secure fastening in heavy-duty applications.

Professional Applications & Engineering Value

This heavy-duty hex nut is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and high tensile stress. The extra wide profile and external hex drive offer superior torque transmission, reducing the risk of tool slippage and damage during installation. Made from high-strength steel and featuring a coarse UNC thread, it ensures rapid assembly and disassembly, even in corroded or debris-prone environments. Ideal for construction machinery, structural steel connections, and heavy equipment manufacturing, this nut's ASTM Grade 2H classification guarantees it can withstand extreme loads without compromising integrity. Its Class 2B thread fit provides optimal clearance, facilitating smooth engagement with mating bolts and minimizing galling, thereby extending service life and reducing maintenance costs in demanding applications.

Specification Summary & Compliance

This hex nut adheres to precise dimensional tolerances, including a Class 2B thread fit and UNC coarse thread with a size of 1 3/4"-5. It meets ASTM A194 specifications for material and manufacturing, ensuring consistent performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms its environmental safety, free from hazardous substances. The nut's strength is classified under ASTM Grade 2H, validating its suitability for high-strength applications in various industrial sectors.