S-91240A003 2-56 Fed. Spec. FF-N-836, MS35649-224, Fed. Spec. QQ-P-35 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Reliable coarse thread engagement with UNC 2-56 sizing and Class 2B fit for secure fastening
• Standard external hex drive enables easy installation with common wrenches
• Precision manufacturing ensures consistent 3/16" width and 1/16" height dimensions
• Rigorous compliance with Fed. Spec. FF-N-836, MS35649-224, and QQ-P-35 standards
• Environmental safety through full RoHS 3 and REACH compliance
• Right-hand threading provides familiar, straightforward assembly

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 2-56 UNC hex nuts deliver exceptional performance where corrosion resistance and thread reliability are critical. The 18-8 Stainless Steel construction prevents rust and degradation in moisture-prone environments, while the Class 2B thread fit ensures consistent engagement without binding or cross-threading issues. The standard external hex drive profile allows for high-torque installation using common tools, making these nuts ideal for assembly lines, machinery maintenance, and electronic enclosures where coarse thread fasteners provide vibration resistance and quick installation. Their compliance with multiple federal specifications guarantees interchangeability and quality consistency across industrial projects.

Specification Summary & Compliance

This 2-56 UNC hex nut features Class 2B thread fit per standard inch system requirements, with precise dimensions of 3/16" width and 1/16" height. Manufacturing strictly adheres to Fed. Spec. FF-N-836, MS35649-224, and QQ-P-35 standards, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety requirements for industrial components.