S-91813A170 1/4"-20 MS35649-2252, Fed. Spec. FF-N-836 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with cadmium yellow-chromate plating, extending service life in harsh environments
• Reliable thread engagement due to Class 2B thread fit, reducing the risk of cross-threading and ensuring secure fastening
• Wide compatibility with 1/4"-20 UNC coarse threads, making it ideal for various industrial assemblies
• High durability from cadmium-plated steel construction, resisting wear and environmental degradation
• Easy installation and removal with standard external hex drive, allowing for efficient maintenance
• Compliance with strict standards including MS35649-2252 and Fed. Spec. FF-N-836, ensuring consistent quality
• Optimized dimensions (7/16" width, 3/16" height) for space-efficient designs without compromising strength

Professional Applications & Engineering Value

This 1/4"-20 UNC hex nut is engineered to address common industrial challenges, such as corrosion and vibration-induced loosening. The cadmium yellow-chromate plating on steel provides a robust barrier against moisture and chemicals, making it suitable for outdoor equipment, automotive systems, and machinery exposed to demanding conditions. Its coarse thread design ensures quick assembly and disassembly, reducing downtime in maintenance-heavy operations. By meeting MS35649-2252 and Fed. Spec. FF-N-836, it delivers consistent performance in aerospace, defense, and general manufacturing applications, where reliability and compliance are critical.

Specification Summary & Compliance

This hex nut features a 1/4"-20 UNC coarse thread with Class 2B thread fit for precise tolerance, ensuring smooth engagement. It complies with MS35649-2252 and Fed. Spec. FF-N-836 standards, and the cadmium yellow-chromate plating aligns with RoHS and REACH environmental guidelines for safe use in various industries.