S-93085A615 4-40 x 7/16" FF-S-92, QQ-P-35, MS24693-5B, NASM24693, SAE AMS2700 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with Black-Oxide coated 18-8 stainless steel, ideal for harsh industrial environments.
- High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under demanding loads.
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
- Class 2A thread fit offers consistent, easy assembly with standard UNC coarse threading for quick installation.
- 100° countersink angle and flat head design allows for a flush, secure fit in countersunk holes, reducing snagging.
- Phillips drive (No. 1 size) enables efficient driving with common tools, minimizing slippage and damage.
- Full compliance with Fed. Spec. FF-S-92, MS24693-5B, and others guarantees adherence to rigorous industrial standards.
Professional Applications & Engineering Value
These 4-40 UNC flat head screws are engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The Black-Oxide 18-8 stainless steel construction provides exceptional resistance to rust and oxidation, making them suitable for outdoor, marine, or chemical-exposed applications. The coarse UNC threads and Class 2A fit ensure quick, reliable engagement in various materials, reducing installation time and improving productivity. With a fully threaded design and 100° countersink, they deliver a secure, flush finish in assemblies where protrusion is a concern, such as in machinery, electronics, and automotive components. This combination of high tensile strength and Phillips drive reliability supports robust performance in critical fastening tasks, minimizing maintenance and downtime.
Specification Summary & Compliance
These screws feature precise UNC coarse threads with a Class 2A thread fit for standard tolerance and easy assembly. They are manufactured in accordance with specifications including Fed. Spec. FF-S-92, QQ-P-35, MS24693-5B, NASM24693, and SAE AMS2700. Additionally, they are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet global standards for hazardous substance restrictions and chemical safety.
