S-91790A190 8-32 x 1/4" 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 and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable, heavy-duty fastening
- Precise thread engagement with Class 2A fit and UNC coarse threads ensuring smooth installation and vibration resistance
- Optimized flush mounting featuring an undercut oval head with 82° countersink angle for secure, non-protruding installations
- Full threading coverage along the 1/4" length provides maximum grip and load distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.6.3 standards while being RoHS 3 and REACH compliant
- Slotted drive compatibility for straightforward installation with standard tools in maintenance and assembly applications
Professional Applications & Engineering Value
This 8-32 UNC oval head slotted machine screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel construction with passivated finish provides exceptional protection against chemical exposure and atmospheric corrosion, making it ideal for marine, food processing, and outdoor equipment applications. The undercut oval head design with 82° countersink angle ensures flush mounting while preventing surface damage, particularly valuable in precision assemblies and aesthetic-critical products. With fully threaded coarse UNC threads and Class 2A fit, this fastener maintains reliable clamping force under vibration and dynamic loads, solving common loosening issues in machinery, electrical enclosures, and transportation equipment.
Specification Summary & Compliance
This machine screw features precision 8-32 UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with ASME B18.6.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental and safety standards for industrial applications worldwide.
