S-90212A817 2"-8 ASTM A194 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with durable Blue PTFE coating that extends service life in harsh environments
- Reduced friction and galling during installation thanks to the PTFE coating, enabling smoother assembly
- Exceptional load distribution and torque capability from the extra wide hex profile, preventing joint failure
- High-strength performance meeting ASTM Grade 2H requirements for demanding industrial applications
- Precision thread fit with Class 2B tolerance ensuring reliable, vibration-resistant fastening
- Industry-standard compliance with ASTM A194 manufacturing specifications for consistent quality
- Fine thread design (UNF) providing superior clamping force and resistance to loosening under dynamic loads
Professional Applications & Engineering Value
This heavy-duty 2"-8 UNF hex nut delivers critical engineering solutions where standard fasteners fail. The Blue PTFE-coated steel construction provides dual protection against corrosion and friction, significantly reducing maintenance frequency in chemical processing, marine, and heavy machinery applications. The extra wide profile distributes clamping forces evenly across larger surface areas, preventing stress concentration and material deformation in high-vibration environments. Manufactured to ASTM A194 standards with Class 2B thread fit, these nuts maintain precise dimensional stability under extreme torque requirements, ensuring reliable performance in structural connections, pipeline systems, and industrial equipment where joint integrity is paramount.
Specification Summary & Compliance
Precision-engineered with Class 2B thread fit and UNF (Unified National Fine) thread form for consistent engagement. Complies with ASTM A194 manufacturing specifications and ASTM Grade 2H strength requirements. Dimensions include 3-1/8" width and 1-31/32" height with right-hand thread direction. Meets industry standards for dimensional accuracy and material performance in industrial fastening applications.
