S-91790A546 1/4"-20 x 1 1/2" ASME B18.6.3 Stainless Steel Slotted Oval Head Screws
Stainless Steel Slotted Oval Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable, long-lasting fastening under demanding loads.
- Rockwell B80 hardness provides excellent durability and resistance to wear and deformation.
- Class 2A thread fit with UNC coarse threading for easy, quick assembly and reduced cross-threading risk.
- Standard oval head with 82° countersink angle offers a smooth, flush finish for improved aesthetics and safety.
- Fully threaded design allows for maximum grip and adjustment flexibility along the entire shank.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards are met.
Professional Applications & Engineering Value
This 1/4-20 UNC fully threaded oval head screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The 18-8 stainless steel material combined with a passivated finish significantly enhances resistance to rust and chemical exposure, making it suitable for applications in marine, food processing, and outdoor equipment. The coarse thread and Class 2A fit facilitate rapid installation with standard tools, reducing labor time and minimizing errors. Its oval head profile with an 82° countersink angle ensures a secure, flush fit in pre-drilled holes, preventing snagging and improving product aesthetics. Ideal for machinery, automotive, and structural assemblies, this screw delivers consistent performance where reliability and regulatory compliance are critical.
Specification Summary & Compliance
This product features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent performance. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring dimensional accuracy and reliability. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial and commercial uses.
