S-91790A550 1/4"-20 x 2" ASME B18.6.3 Stainless Steel Slotted Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction and passivated finish for long-lasting performance in harsh environments
• Exceptional mechanical strength with 80,000 PSI tensile strength and Rockwell B80 hardness for reliable heavy-duty fastening
• Precision thread engagement through Class 2A UNC coarse threads ensuring secure fit and easy installation
• Optimized head design featuring standard oval profile with 82° countersink angle for flush mounting and improved aesthetics
• Full-threaded construction providing maximum grip length and uniform stress distribution across the entire 2" length
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated applications

Professional Applications & Engineering Value

This 18-8 Stainless Steel oval head slotted screw delivers exceptional engineering value for industrial applications where corrosion resistance and mechanical reliability are critical. The combination of passivated finish and stainless steel material provides superior protection against chemical exposure and atmospheric corrosion, making it ideal for marine, food processing, and outdoor equipment applications. The UNC coarse thread design ensures rapid installation and secure fastening in various materials, while the oval head profile with standard countersink angle allows for flush mounting that eliminates protrusions and improves safety. With fully threaded construction and precise Class 2A thread fit, this fastener maintains consistent clamping force and prevents loosening under vibration, addressing common industrial fastening challenges in machinery assembly, structural frameworks, and equipment maintenance.

Specification Summary & Compliance

This 1/4"-20 x 2" oval head slotted screw features precision UNC coarse threads with Class 2A thread fit tolerance for optimal engagement and assembly efficiency. Manufacturing and dimensional specifications strictly adhere to ASME B18.6.3 standards, ensuring consistent quality and interchangeability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for applications requiring strict material restrictions and environmental responsibility.