S-91771A630 3/8"-16 x 1 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head 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 80,000 PSI tensile strength and Rockwell B80 hardness for heavy-duty applications
- Precise thread engagement with Class 2A fit and UNC coarse threads ensuring reliable fastening performance
- Optimal flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Enhanced driving efficiency with Phillips No. 4 drive providing secure torque transmission and reduced cam-out risk
- Full-threaded design delivering maximum grip length and uniform load distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
These 3/8"-16 UNC flat head screws deliver critical engineering solutions where surface flushness and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional corrosion resistance in demanding environments including marine applications, food processing equipment, and outdoor machinery. The fully threaded design with coarse UNC threads ensures rapid installation and superior pull-out resistance in various substrates. The 82° countersink angle and flat head profile create seamless transitions in assembled components, eliminating protrusions that could interfere with moving parts or aesthetic requirements. With Phillips drive compatibility and standardized dimensions, these screws offer reliable performance in automated assembly systems while maintaining consistent clamping force in vibration-prone applications.
Specification Summary & Compliance
Manufactured to precise dimensional tolerances with Class 2A thread fit and UNC coarse thread profile. Complies with ASME B18.6.3 mechanical and dimensional specifications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features standard 82° countersink angle and fully threaded design with right-hand thread direction for universal industrial compatibility.
