S-91400A173 6-40 x 5/16" FF-S-92, QQ-P-35, MS51958-27, NASM51958 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance from passivated 18-8 stainless steel construction, ideal for harsh environments and extended service life
- Exceptional tensile strength of 80,000 psi provides reliable, high-load fastening for demanding industrial applications
- Fine UNF thread profile with Class 2A fit ensures precise engagement and vibration resistance in critical assemblies
- Fully threaded design maximizes grip length and load distribution across the entire fastener
- Pan head with Phillips No. 2 drive offers streamlined installation and secure torque transmission
- Comprehensive regulatory compliance including RoHS 3 and REACH for global market acceptance
- Standardized dimensions meeting multiple military and federal specifications for guaranteed interchangeability
Professional Applications & Engineering Value
Engineered for precision assemblies where corrosion resistance and mechanical reliability are paramount, these 6-40 UNF fine thread pan head screws deliver consistent performance in demanding environments. The passivated 18-8 stainless steel construction provides excellent protection against oxidation and chemical exposure, making them ideal for marine, aerospace, and electronic enclosures. The fully threaded design combined with Class 2A thread fit ensures maximum thread engagement and vibration resistance, preventing loosening in dynamic applications. The rounded pan head profile with Phillips No. 2 drive facilitates quick installation while maintaining a low-profile appearance, perfect for applications with limited clearance.
Specification Summary & Compliance
Manufactured to exacting Class 2A thread tolerances with UNF fine thread specifications (6-40). Complies with Fed. Spec. FF-S-92, QQ-P-35, MS51958-27, and NASM51958 standards. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features 80,000 psi tensile strength and 5/16" length with fully threaded construction for consistent performance across industrial applications.
