S-91773A209 8-32 x 3" ASME B18.6.3 Stainless Steel Round Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Exceptional mechanical strength offering 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance under heavy loads
• Optimized drive engagement with Phillips No. 2 drive ensuring secure tool mating and reduced cam-out during installation
• Precise thread compatibility through UNC coarse threading with Class 2A fit for smooth assembly and vibration resistance
• Versatile partial threading design providing both secure fastening and clearance flexibility in various industrial applications
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Enhanced installation efficiency with rounded head profile allowing for flush mounting and reduced snagging in confined spaces

Professional Applications & Engineering Value

These 8-32 UNC coarse thread screws deliver critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition combined with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine, food processing, and outdoor industrial equipment. The partially threaded design allows for precise clamping force distribution while the rounded head with Phillips drive facilitates quick installation in tight spaces. With 100,000 psi tensile strength, these fasteners maintain joint integrity in high-vibration applications including machinery assembly, electrical enclosures, and structural frameworks where ASME B18.6.3 compliance is required for quality assurance.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2A thread fit tolerance ensuring proper engagement and interchangeability. The UNC coarse thread (8-32) with right-hand direction provides reliable fastening performance across industrial applications. Full compliance with ASME B18.6.3 manufacturing specifications, along with environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for restricted substance control. Dimensional accuracy maintained with 3" length, 0.309" head diameter, and minimum 1½" thread length for consistent performance.