S-91500A080 2-56 x 1/8" 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 in harsh environments due to 316 stainless steel construction and passivated finish.
- High mechanical strength and durability for demanding applications, backed by a 70,000 psi tensile strength and Rockwell B80 hardness.
- Precise and flush installation enabled by the undercut flat head and 82° countersink angle.
- Reliable, coarse-thread engagement with UNC Class 2A threads for secure fastening and vibration resistance.
- Efficient installation and removal with the standardized Phillips No. 1 drive.
- Full threading along the 1/8" length provides maximum grip and holding power in shallow materials.
- Compliance with major industrial and environmental standards ensures product reliability and global acceptance.
Professional Applications & Engineering Value
This 2-56 UNC Flat Head Phillips Screw is engineered for precision and longevity in demanding sectors. The 316 stainless steel material offers excellent resistance to chemicals and saltwater, making it ideal for marine, chemical processing, and food-grade equipment. The passivated finish further enhances its corrosion resistance, extending service life. The undercut flat head design allows the screw to sit perfectly flush, preventing snagging and providing a clean, aerodynamic surface. Combined with the coarse UNC thread and Class 2A fit, it ensures rapid assembly and a secure, vibration-resistant hold in various materials, solving common issues of loosening and material stripping in industrial assembly lines and electronic enclosures.
Specification Summary & Compliance
This screw features a 2-56 UNC coarse thread with a Class 2A thread fit for standard tolerance and interchangeability. The dimensional specifications, including the 1/8" length and 82° countersink angle, are manufactured in compliance with the ASME B18.6.3 standard. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety regulations for hazardous substances.
