S-91400A064 2-56 x 5/8" FF-S-92, QQ-P-35, MS51957-8 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.
- High tensile strength of 80,000 psi ensures reliable performance under mechanical stress and vibration.
- Fully threaded UNC coarse design provides faster installation and superior holding power in various materials.
- Class 2A thread fit guarantees consistent, precise engagement for reduced cross-threading and assembly errors.
- Pan head with Phillips No. 1 drive offers a low-profile, secure fit and easy driving with standard tools.
- Compliance with Fed. Spec. FF-S-92, QQ-P-35, and MS51957-8 ensures adherence to strict industrial and military standards.
- RoHS 3 and REACH compliant for safe use in regulated applications, supporting environmental and health standards.
Professional Applications & Engineering Value
This 2-56 UNC rounded pan head screw is engineered to address critical challenges in industrial assembly, such as corrosion-induced failure and thread stripping. The passivated 18-8 stainless steel material provides excellent resistance to moisture and chemicals, extending service life in demanding settings like electronics, machinery, and outdoor equipment. Its coarse thread and fully threaded design enhance grip in soft or brittle substrates, reducing the risk of loosening under dynamic loads. The Phillips drive ensures efficient installation with common tools, minimizing downtime. Ideal for applications requiring reliable fastening with high tensile strength and regulatory compliance, this screw delivers consistent performance in automotive, aerospace, and consumer goods manufacturing.
Specification Summary & Compliance
This screw features a 2-56 UNC thread size with Class 2A thread fit for standard dimensional accuracy and ease of assembly. It meets stringent specifications including Fed. Spec. FF-S-92, QQ-P-35, and MS51957-8, ensuring quality and interoperability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in environments with strict environmental and health standards.
