S-91772A938 1/4"-20 x 9/16" 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
• High tensile strength of 70,000 psi ensures reliable performance under demanding mechanical loads
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Class 2A thread fit with UNC coarse threading enables quick assembly and secure fastening in various materials
• Phillips No. 3 drive design offers efficient torque transfer and reduces tool slippage during installation
• Fully threaded shank maximizes grip and load distribution across the entire fastener length
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility

Professional Applications & Engineering Value

These 1/4"-20 UNC coarse thread screws with passivated 18-8 stainless steel construction address critical industrial challenges, including corrosion in chemical processing, marine, and outdoor applications. The rounded pan head design minimizes surface protrusion while the Phillips drive ensures straightforward installation in confined spaces. With a 70,000 psi tensile strength and Rockwell B70 hardness, these fully threaded screws provide consistent clamping force and vibration resistance in machinery, electrical enclosures, and structural assemblies, reducing maintenance needs and enhancing operational reliability.

Specification Summary & Compliance

This screw features precise Class 2A thread fit with UNC coarse thread specifications, ensuring dimensional accuracy per ASME B18.6.3 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting sustainable manufacturing practices.