S-91772A123 5-40 x 3/16" 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 with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Optimized thread engagement through Class 2A thread fit and UNC coarse threading, ensuring secure fastening and vibration resistance
- Efficient installation with Phillips No. 2 drive and pan head design, reducing assembly time and tool slippage
- Full-threaded design provides maximum grip length and uniform stress distribution across the entire fastener
- Regulatory compliance with ASME B18.6.3 standards and environmental directives (RoHS 3, REACH) for global market acceptance
- Compact 3/16" length with standard pan head profile enables space-efficient assembly in confined applications
Professional Applications & Engineering Value
These 5-40 UNC coarse thread pan head screws deliver critical performance in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction effectively combats oxidation and chemical exposure in marine, chemical processing, and outdoor equipment applications. The combination of fully threaded right-hand design and Class 2A thread fit ensures consistent clamping force and prevents loosening under dynamic loads. With Phillips No. 2 drive compatibility, these screws enable rapid installation in high-volume manufacturing while maintaining precise torque control. Ideal for securing electronic enclosures, machinery components, and structural assemblies where vibration resistance and long-term fastener integrity are essential.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent dimensional accuracy. The 5-40 UNC coarse thread configuration provides optimal thread engagement in various materials. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use in regulated industries. Mechanical properties include 70,000 psi tensile strength and Rockwell B70 hardness for durable performance in demanding fastening applications.
