S-91802A115 4-40 x 1" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws
Stainless Steel Phillips Oval 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 tensile strength of 80,000 psi ensures reliable fastening under high-stress conditions
- Rockwell B80 hardness provides excellent durability and resistance to wear and deformation
- Precise Class 2A thread fit guarantees smooth installation and secure connections
- Full threading with coarse UNC spacing enables faster assembly and stronger holding power
- Oval head with Phillips drive offers a flush finish while allowing easy installation with standard tools
- Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental standards are met
Professional Applications & Engineering Value
These 4-40 UNC oval head Phillips flat head screws are engineered to address common industrial fastening challenges, particularly where corrosion resistance and high tensile strength are critical. The passivated 18-8 stainless steel material prevents rust and degradation in moist or chemical-exposed environments, extending service life in applications like machinery, electronics, and outdoor equipment. The coarse thread spacing and fully threaded design provide superior grip and vibration resistance, reducing the risk of loosening in dynamic loads. The oval head profile sits flush with surfaces, minimizing protrusion and improving aesthetics while the Phillips drive ensures compatibility with common tools, streamlining assembly processes in manufacturing and maintenance operations.
Specification Summary & Compliance
These screws feature a Class 2A thread fit with UNC coarse threading and precise dimensional accuracy per ASME B18.6.3 standards. They are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they are free from hazardous substances and safe for various industrial uses. Manufactured in the inch system, they offer consistent performance in applications requiring reliable, corrosion-resistant fastening solutions.
