S-91500A362 1/4"-20 x 3 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat 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 316 Stainless Steel construction, ideal for harsh chemical and marine environments.
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for reliable, long-lasting fastening.
- Enhanced environmental protection from the passivated finish, extending service life in demanding conditions.
- Optimized for flush mounting with a standard 82° countersink angle and flat head design for a smooth, secure surface finish.
- Quick and efficient installation using a standard No. 3 Phillips drive, reducing assembly time and tool wear.
- Secure and reliable thread engagement with fully threaded UNC coarse pattern and Class 2A fit for strong holding power.
- Broad industrial compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for safe, regulated use.
Professional Applications & Engineering Value
These 316 Stainless Steel Flat Head Screws are engineered to address critical challenges in industrial and marine settings where corrosion and mechanical stress are prevalent. The passivated finish significantly enhances the innate corrosion resistance of 316 stainless steel, making these Phillips drive screws ideal for equipment exposed to moisture, chemicals, and salt spray. The fully threaded UNC coarse pattern and Class 2A thread fit ensure rapid installation and superior vibration resistance, preventing loosening in dynamic applications. With a high 70,000 psi tensile strength, they provide dependable performance in structural assemblies, machinery, and outdoor infrastructure, offering a durable, long-term industrial screw solution that minimizes maintenance and replacement costs.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with a Class 2A fit for standard tolerance and reliable engagement. It is manufactured in compliance with the ASME B18.6.3 standard, ensuring dimensional accuracy and performance consistency. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free from hazardous substances and safe for use in regulated markets.
