S-94191A118 7/16"-20 Fed. Spec. FF-N-836, MS51968-12 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 classification, ensuring reliable performance in high-stress industrial environments
• Superior corrosion resistance through black-oxide steel construction, extending service life in demanding conditions
• Precise thread engagement with Class 2B fit and 7/16"-20 UNF fine threads for secure, vibration-resistant connections
• Standard hex profile compatibility allowing use with common wrenching tools for straightforward installation and maintenance
• Right-hand thread design providing intuitive installation following conventional fastener practices
• Regulatory compliance assurance meeting Fed. Spec. FF-N-836, MS51968-12, RoHS 3, and REACH standards for quality and environmental safety
• Optimized dimensional stability with 11/16" width and 3/8" height for consistent performance across multiple applications

Professional Applications & Engineering Value

This Grade 8 black-oxide steel hex nut delivers critical engineering solutions where high tensile strength and corrosion resistance are paramount. The 7/16"-20 UNF fine thread configuration with Class 2B thread fit ensures superior vibration resistance and precise alignment in machinery, automotive, and heavy equipment applications. The black-oxide surface treatment provides enhanced protection against rust and environmental degradation, while the standard external hex drive facilitates quick installation and maintenance. Engineered to withstand extreme mechanical stress, these heavy-duty hex nuts prevent joint failure in critical assemblies, making them ideal for structural frameworks, engine components, and industrial machinery requiring reliable fastening solutions with long-term durability.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2B thread tolerance for optimal fit and performance. Complies with Fed. Spec. FF-N-836 and MS51968-12 manufacturing specifications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features UNF thread standard with fine thread spacing (20 TPI) and right-hand thread direction. Dimensions include 11/16" width across flats and 3/8" height for standardized compatibility.