S-91802A539 1/4"-20 x 5/8" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws
Stainless Steel Phillips 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 Passivated 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
- High tensile strength of 80,000 psi ensures reliable load-bearing capacity and structural integrity in demanding applications.
- Rockwell B80 hardness provides excellent durability and resistance to wear, reducing replacement frequency.
- Fully threaded UNC coarse design with Class 2A fit offers quick, secure fastening and consistent engagement.
- Oval head with Phillips No. 3 drive allows for easy installation and a flush, aesthetically pleasing finish.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards for industrial use.
- Standard 82° countersink angle ensures proper seating and alignment in pre-drilled holes.
Professional Applications & Engineering Value
This 1/4"-20 x 5/8" oval head Phillips screw is engineered to address common industrial challenges, such as corrosion-induced failure and assembly inefficiency. Made from Passivated 18-8 Stainless Steel, it resists rust and chemical exposure, making it ideal for outdoor equipment, marine hardware, and food processing machinery. The fully threaded UNC coarse design with Class 2A fit ensures rapid, vibration-resistant fastening, reducing installation time and maintenance costs. Its oval head profile and Phillips No. 3 drive facilitate smooth, countersunk installations in metal, plastic, or wood assemblies, enhancing both performance and aesthetics in industrial screw applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent performance. It meets ASME B18.6.3 specifications for dimensional accuracy and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability in industrial settings.
