S-91400A130 4-40 x 1 1/2" FF-S-92, QQ-P-35, MS51957-23 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
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- High tensile strength of 80,000 psi ensures dependable performance under significant mechanical stress in demanding applications.
- Fully threaded coarse UNC design provides faster installation and enhanced grip in a variety of materials.
- Precise Class 2A thread fit guarantees consistent, secure fastening with reduced risk of cross-threading.
- Rounded pan head with Phillips No. 1 drive offers a low-profile, flush finish and easy, tool-compatible installation.
- Compliance with key industry standards including Fed. Spec. FF-S-92, QQ-P-35, and MS51957-23, ensuring quality and interchangeability.
- RoHS 3 compliance makes these screws suitable for use in regulated industries and environmentally conscious projects.
Professional Applications & Engineering Value
These 4-40 UNC Rounded Pan Head Phillips Screws are engineered to address common industrial challenges such as corrosion and vibration loosening. The passivated 18-8 stainless steel provides excellent resistance to rust and chemical exposure, making them ideal for outdoor equipment, marine applications, and electronic enclosures. The coarse thread and fully threaded design ensure a strong, reliable hold in both soft and hard materials, reducing the need for precise tapping and speeding up assembly lines. The combination of a rounded pan head and Phillips drive allows for a secure, low-profile installation that withstands operational stresses, providing long-term fastening integrity in critical assemblies.
Specification Summary & Compliance
This screw features a 4-40 UNC coarse thread with a Class 2A fit for standard tolerance and easy assembly. It is manufactured in accordance with Fed. Spec. FF-S-92, QQ-P-35, and MS51957-23, ensuring consistent quality and performance. The product is RoHS 3 (2015/863/EU) Compliant, confirming it is free from hazardous substances and suitable for a wide range of industrial and commercial uses.
