S-91790A552 1/4"-20 x 2 1/2" ASME B18.6.3 Stainless Steel Slotted Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Enhanced durability and strength with Rockwell B80 hardness and 80,000 psi tensile strength for reliable, long-term fastening
• Easy installation and removal with a standard slotted drive and coarse UNC threading, reducing assembly time
• Secure and flush fit due to the oval head design and standard profile, minimizing protrusion and improving aesthetics
• Consistent performance ensured by Class 2A thread fit and partial threading, providing precise engagement and vibration resistance
• Broad compatibility with ASME B18.6.3 standards, ensuring interchangeability and quality in various applications
• Environmentally safe use with compliance to RoHS 3 and REACH regulations, supporting sustainable manufacturing practices

Professional Applications & Engineering Value

This 18-8 stainless steel oval head slotted screw is engineered to address common industrial challenges, such as corrosion and mechanical stress in demanding environments. The passivated finish significantly enhances its resistance to rust and chemicals, making it suitable for outdoor, marine, or chemical processing equipment. With a coarse UNC thread and partial threading, it offers quick assembly and reduced risk of cross-threading, while the oval head provides a low-profile, secure fit that prevents snagging in machinery. Ideal for heavy-duty fastening in construction, automotive, and manufacturing sectors, this screw ensures reliable performance under high loads, backed by its high tensile strength and standardized dimensions for consistent results.

Specification Summary & Compliance

This product features precise Class 2A thread fit and adheres to ASME B18.6.3 specifications for dimensional accuracy and performance. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. Key details include a 1/4"-20 UNC coarse thread, 2 1/2" length, and partially threaded design, all manufactured to meet industry standards for reliability and safety in professional use.