S-97149A873 1 3/4"-5 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments and outdoor applications
• Reliable coarse threading with UNC 1 3/4"-5 specification ensures quick assembly and reduced cross-threading risks in high-vibration settings
• Precise Class 2B thread fit guarantees consistent engagement and secure fastening with mating components
• Heavy-duty construction with 2 5/8" width and 1 1/2" height provides exceptional load distribution and mechanical strength
• Standard external hex drive allows for easy installation using common wrenches, reducing labor time and tooling costs
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries and global markets
• Right-hand thread design offers compatibility with standard industrial equipment and simplified maintenance procedures

Professional Applications & Engineering Value

This heavy-duty hex nut delivers critical performance in demanding applications where corrosion resistance and mechanical reliability are paramount. The Black-Oxide 18-8 Stainless Steel construction provides enhanced protection against rust and chemical exposure, making it suitable for marine equipment, chemical processing plants, and outdoor infrastructure. The UNC coarse thread profile ensures rapid installation in thick materials and maintains integrity under dynamic loads, while the Class 2B thread fit prevents loosening in high-vibration machinery. Engineers specify this external hex drive nut for structural connections, heavy machinery assembly, and industrial maintenance where durability and regulatory compliance are essential for operational safety and longevity.

Specification Summary & Compliance

This hex nut features 1 3/4"-5 UNC coarse threads with Class 2B thread fit per ASME B18.2.2 standards, ensuring precise dimensional accuracy and interchangeability. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming absence of restricted substances. The standard hex nut profile with 2 5/8" width and 1 1/2" height maintains consistent mechanical properties for industrial fastening applications.