S-91773A101 3-48 x 1" ASME B18.6.3 Stainless Steel Round Head Phillips Screws
Stainless Steel Round 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 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable, long-term fastening
- Optimized drive engagement through Phillips No. 1 drive and rounded head design for efficient installation and reduced cam-out
- Precise thread compatibility with 3-48 UNC coarse threads and Class 2A fit ensuring secure connections in various materials
- Full-threaded design provides maximum grip length and uniform stress distribution along the entire 1" length
- Regulatory compliance meets ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
- Versatile industrial application suitable for machinery, equipment assembly, and applications requiring corrosion-resistant fasteners
Professional Applications & Engineering Value
These 3-48 UNC Rounded Head Phillips Screws deliver critical engineering advantages in demanding industrial environments. The 18-8 Stainless Steel composition combined with passivated finish provides exceptional protection against corrosion, oxidation, and chemical exposure, significantly extending service life in moisture-prone applications. The fully threaded design ensures maximum thread engagement and load distribution, while the Phillips No. 1 drive offers secure tool engagement with reduced slippage during installation. With 100,000 psi tensile strength and Rockwell B100 hardness, these screws maintain structural integrity under vibration and dynamic loads, making them ideal for precision equipment, electronic enclosures, and machinery assemblies where reliability is paramount.
Specification Summary & Compliance
This rounded head screw features precise 3-48 UNC coarse threads with Class 2A fit tolerance for consistent mating with standard nuts and threaded components. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial and commercial applications without hazardous substance restrictions.
