S-91772A840 10-32 x 2 1/2" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications
• Enhanced durability and strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Optimized thread engagement with Class 2A thread fit and fine UNF threading ensuring precise, secure fastening in machinery and equipment
• Easy installation and removal featuring a No. 2 Phillips drive and rounded pan head design for efficient assembly with standard tools
• Versatile partial threading allowing for controlled clamping force and reduced risk of cross-threading in critical applications
• Compliance with industry standards including ASME B18.6.3, ensuring consistent quality and interchangeability in professional settings
• Environmental and safety compliance with RoHS 3 and REACH regulations, making them suitable for global supply chains and sensitive applications

Professional Applications & Engineering Value

These 10-32 UNF partially threaded pan head screws are engineered to address common industrial challenges such as vibration loosening, material fatigue, and corrosive degradation. The passivated 18-8 stainless steel provides excellent resistance to rust and chemicals, extending service life in demanding environments like marine, automotive, and food processing equipment. The fine thread spacing and Class 2A thread fit deliver superior holding power and precision alignment in assemblies where tolerance control is critical. With a partially threaded shank, these screws minimize stress concentration and prevent over-tightening, making them ideal for securing components in machinery, electronic enclosures, and structural frameworks. The combination of high tensile strength and Phillips drive compatibility ensures quick, reliable installations while maintaining compliance with rigorous ASME B18.6.3 specifications.

Specification Summary & Compliance

This fastener adheres to Class 2A thread fit tolerances per unified screw thread standards, ensuring consistent dimensional accuracy. The 10-32 UNF fine threading and partial threading up to 1 1/2" provide reliable engagement in various materials. Manufacturing and material specifications comply with ASME B18.6.3 for mechanical and dimensional integrity. Additionally, the product is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substance restrictions.