S-91772A677 3/8"-16 x 1" 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 for long-term reliability in harsh environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Precise thread engagement with UNC coarse spacing and Class 2A fit ensuring secure fastening and vibration resistance
• Optimized drive performance featuring Phillips No. 4 drive for efficient installation and reduced cam-out risk
• Full threading design providing maximum grip length and load distribution across the entire fastener
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

This 3/8"-16 x 1" passivated stainless steel pan head screw delivers critical performance advantages for industrial applications where corrosion resistance and mechanical integrity are paramount. The 18-8 stainless steel composition, enhanced by passivation treatment, provides exceptional protection against oxidation and chemical degradation in demanding environments such as marine equipment, food processing machinery, and outdoor structures. The UNC coarse thread spacing with Class 2A fit ensures rapid installation and reliable performance in materials where fine threads might strip or fail. The combination of 70,000 psi tensile strength and fully threaded design makes these rounded head screws ideal for applications requiring both high clamp load and uniform stress distribution, solving common challenges of joint failure and fastener loosening in vibrating machinery and structural assemblies.

Specification Summary & Compliance

This pan head Phillips screw features precise dimensional control with Class 2A thread fit per UNC standards, ensuring consistent performance across industrial applications. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) requirements for chemical safety, confirming its suitability for global markets and environmentally conscious operations.