S-91773A057 0-80 x 3/8" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 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 load-bearing performance
• Precision thread engagement with Class 2A fit and UNF fine threads ensuring secure fastening and vibration resistance
• Optimized drive efficiency featuring Phillips No. 0 drive for controlled torque application and reduced cam-out risk
• Full thread coverage along the 3/8" length provides maximum grip and uniform stress distribution
• Regulatory compliance assurance meeting ASME B18.6.3 manufacturing standards and environmental regulations (RoHS 3, REACH)
• Versatile rounded head design offering smooth profile integration and reduced surface damage in assembled components

Professional Applications & Engineering Value

Engineered for precision assemblies requiring fine thread screws with consistent performance, these 18-8 stainless steel rounded head Phillips screws address critical industrial challenges. The combination of UNF thread form and Class 2A tolerance ensures precise fit in applications where vibration loosening is a concern, such as electronic enclosures, instrumentation, and aerospace components. The passivated finish significantly enhances corrosion resistance in humid or chemically aggressive environments, extending service life. With 100,000 psi tensile strength, these screws maintain integrity under sustained mechanical stress, while the rounded head profile minimizes protrusion and prevents snagging in compact assemblies. Ideal for OEMs and maintenance teams seeking ASME B18.6.3 compliant fasteners that deliver reliability in high-stakes applications.

Specification Summary & Compliance

This 0-80 UNF screw maintains precise Class 2A thread fit per unified thread standards, with full threading across its 3/8" length. Manufacturing adheres to ASME B18.6.3 specifications for dimensional consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for global industrial use.