S-93085A621 2-56 x 5/32" FF-S-92, QQ-P-35, MS24693-17B, NASM24693, SAE AMS2700 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh environments and extended service life.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads, reducing the risk of fastener failure.
• Rockwell B70 hardness provides excellent durability and resistance to wear during installation and use.
• Class 2A thread fit offers consistent, easy assembly with standard UNC coarse threads, minimizing cross-threading issues.
• 100° countersink angle and flat head design allows for a flush, low-profile finish in countersunk holes, enhancing aesthetics and safety.
• Fully threaded shank maximizes grip and holding power across the entire length for secure fastening in various materials.
• Compliance with multiple industry standards including Fed. Spec. FF-S-92 and RoHS 3, ensuring quality and regulatory adherence for professional applications.

Professional Applications & Engineering Value

This 2-56 UNC flat head screw is 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 it suitable for outdoor, marine, and chemical-exposed environments. The Phillips drive and coarse thread spacing facilitate quick installation with standard tools, reducing labor time while the fully threaded design ensures uniform stress distribution. Ideal for precision assemblies in aerospace, electronics, and machinery, this screw maintains integrity under high-stress conditions, thanks to its 70,000 psi tensile strength and compliance with specifications like MS24693-17B, enhancing reliability in critical fastening applications.

Specification Summary & Compliance

This product features a 2-56 UNC thread size with Class 2A thread fit for precise dimensional accuracy and easy assembly. It meets stringent standards including Fed. Spec. FF-S-92, QQ-P-35, MS24693-17B, NASM24693, and SAE AMS2700, ensuring consistent quality and performance. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.