S-91802A079 2-56 x 3/8" 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 and washdown applications.
- Exceptional tensile strength rated at 80,000 psi, providing reliable and secure fastening under high-stress conditions.
- Precision Class 2A thread fit ensures smooth installation and consistent performance with standard UNC coarse threaded components.
- Enhanced durability and wear resistance from a Rockwell B80 hardness, maintaining thread integrity through repeated use.
- Streamlined assembly process with a standard oval head and Phillips No. 1 drive, allowing for efficient installation with common tools.
- Full threading along the 3/8" length offers maximum grip and holding power across the entire fastener engagement.
- Broad compliance with major industry standards including ASME B18.6.3, ensuring dimensional accuracy and interchangeability.
Professional Applications & Engineering Value
This 2-56 UNC oval head Phillips machine screw is engineered to solve critical fastening challenges in demanding environments. The passivated 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it a top choice for industrial machinery, electronic enclosures, and marine applications where corrosion is a primary concern. The combination of a coarse UNC thread and Class 2A fit prevents cross-threading and ensures rapid, reliable assembly on the production line. The oval head with an 82° countersink angle sits flush for a clean, professional finish, while the Phillips drive offers widespread tool compatibility. With a high 80,000 psi tensile strength, this fastener maintains joint integrity in vibration-prone equipment, reducing maintenance needs and downtime.
Specification Summary & Compliance
This screw features a 2-56 UNC coarse thread with a Class 2A thread fit for standard dimensional accuracy and ease of assembly. It is manufactured in compliance with the ASME B18.6.3 standard for dimensional consistency. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances.
