S-91400A063 2-56 x 9/16" FF-S-92, QQ-P-35, MS51957-141 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan 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
- Exceptional corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments.
- Superior holding power from fully threaded UNC coarse threads, ensuring reliable fastening in various materials.
- High tensile strength of 80,000 PSI provides dependable performance under mechanical stress and vibration.
- Precise Class 2A thread fit enables smooth installation and consistent engagement with mating components.
- Easy installation and removal with Phillips No. 1 drive, reducing assembly time and tool wear.
- Durable pan head design offers a low-profile, rounded finish that resists snagging and provides a finished appearance.
- Compliance with major industry standards including Fed. Spec. FF-S-92, QQ-P-35, and MS51957-141, ensuring quality and reliability.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 2-56 UNC pan head screws address common challenges in machinery assembly, electronics enclosures, and precision equipment. The passivated 18-8 stainless steel provides excellent resistance to oxidation and chemical exposure, extending service life in corrosive environments. The coarse UNC thread and fully threaded design enhance grip in softer materials and prevent loosening under dynamic loads. With a Phillips drive and rounded pan head, these screws facilitate quick, secure installations while maintaining a low-profile aesthetic. Ideal for OEM and MRO uses where high tensile strength and regulatory compliance are critical.
Specification Summary & Compliance
This screw features a 2-56 UNC thread with Class 2A fit for standard dimensional accuracy, a length of 9/16 inch, and a head diameter of 0.167 inch. It conforms to Fed. Spec. FF-S-92, QQ-P-35, and MS51957-141 manufacturing specifications. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for global industrial use.
