S-91772A513 4-40 x 3/32" ASME B18.6.3 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, ensuring long-term reliability in harsh environments
- High tensile strength of 70,000 psi provides exceptional load-bearing capacity for demanding industrial applications
- Coarse UNC threading with Class 2A fit enables quick, secure installation and vibration resistance
- Fully threaded design offers maximum grip length and consistent holding power across the entire fastener
- No. 1 Phillips pan head drive combines easy installation with a low-profile, rounded head for smooth surface finishes
- Compliance with ASME B18.6.3 standards guarantees precise dimensional accuracy and interchangeability
- RoHS 3 and REACH environmental compliance ensures safe use in regulated industries and global markets
Professional Applications & Engineering Value
This 4-40 UNC machine screw delivers critical engineering solutions where corrosion resistance and mechanical strength are paramount. The passivated 18-8 stainless steel construction prevents oxidation in marine, chemical processing, and outdoor applications, while the coarse thread design maintains secure fastening in materials prone to vibration loosening. The combination of fully threaded engagement and 70,000 psi tensile strength provides reliable performance in electronic enclosures, machinery assemblies, and precision equipment where thread stripping or fastener failure is unacceptable. The rounded pan head with Phillips drive offers both aesthetic cleanliness and practical installation efficiency for production environments.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerances ensuring precise interchangeability. The 4-40 UNC coarse thread maintains consistent engagement while the 3/32" length provides optimal fastening in confined spaces. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making these screws suitable for international industrial markets and restricted substance-sensitive applications.
