S-90580A822 1"-8 ASTM A563 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection through hot-dipped galvanized steel construction, ensuring long-term reliability in harsh industrial environments
• Enhanced load distribution with extra wide profile design, reducing stress concentration and preventing joint failure
• High-strength performance meeting ASTM Grade C requirements, providing dependable fastening for heavy-duty applications
• Excellent thread compatibility with Class 2B thread fit and 1"-8 UNC coarse threads, enabling quick assembly and vibration resistance
• Industry-standard compliance with ASTM A563 specifications, guaranteeing consistent quality and interchangeability
• Environmental responsibility with RoHS 3 compliance, ensuring safe use in regulated industries
• Optimized installation efficiency through external hex drive design, allowing standard wrench access in confined spaces

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this heavy-duty hex nut combines hot-dipped galvanized steel construction with an extra wide profile to address critical engineering challenges. The 1"-8 UNC coarse thread configuration provides superior vibration resistance in heavy machinery, structural steel connections, and transportation equipment, while the Class 2B thread fit ensures smooth assembly without compromising retention strength. The hot-dipped galvanization process creates a thick, durable barrier against corrosion, making these ASTM A563 compliant nuts ideal for outdoor infrastructure, marine environments, and chemical processing facilities where moisture and corrosive elements are prevalent. The external hex drive design maintains compatibility with standard industrial tools, streamlining maintenance and installation procedures across various sectors.

Specification Summary & Compliance

This heavy-duty hex nut features precise 1"-8 UNC coarse threads with Class 2B thread fit tolerances, ensuring reliable engagement with mating components. Manufactured to ASTM A563 specifications with ASTM Grade C strength requirements, the nut delivers consistent mechanical performance. The hot-dipped galvanized steel construction provides exceptional corrosion protection while maintaining RoHS 3 (2015/863/EU) compliance for environmental safety. Physical dimensions include 1 5/8" width across flats and 63/64" height, providing substantial bearing surface for optimal load distribution in right-hand thread applications.