S-91500A190 8-32 x 1/4" 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 316 stainless steel construction, ideal for harsh chemical and marine environments
- Enhanced durability and strength from 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
- Secure, flush installation with undercut flat head and 82° countersink angle, preventing surface protrusion and snagging
- Efficient assembly and removal using Phillips No. 2 drive, reducing tool slippage and damage during installation
- Precise thread engagement with UNC coarse threads and Class 2A fit, ensuring consistent fastening in industrial machinery
- Full-length threading provides maximum grip along the entire 1/4" length for enhanced holding power
- Compliance with global standards including ASME B18.6.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance
Professional Applications & Engineering Value
These 8-32 UNC flat head Phillips machine screws are engineered to address critical challenges in demanding industrial settings. The 316 stainless steel material, combined with a passivated finish, provides exceptional resistance to corrosion, pitting, and chloride attack, making them ideal for chemical processing, marine equipment, and food-grade applications. The undercut flat head design allows for a completely flush surface finish, eliminating interference in precision assemblies. With coarse UNC threading and Class 2A fit, these screws deliver reliable performance in vibration-prone machinery, reducing the risk of loosening over time. The Phillips No. 2 drive ensures efficient installation with standard tools, streamlining assembly lines while maintaining high torque resistance.
Specification Summary & Compliance
This flat head screw features a 1/4" length with fully threaded 8-32 UNC coarse threads and Class 2A thread fit for consistent dimensional accuracy. Manufacturing adheres to ASME B18.6.3 specifications, ensuring reliable performance in mechanical assemblies. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use worldwide.
