S-91772A544 1/4"-20 x 1 1/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips 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 industrial environments and outdoor applications.
- Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high-stress conditions.
- Optimized drive engagement with Phillips No. 3 drive style, ensuring efficient installation and reduced cam-out risk during assembly.
- Precise thread fit with Class 2A UNC coarse threads, providing consistent engagement and vibration resistance in machinery and equipment.
- Full threading design along the entire 1-1/4" length, maximizing grip and load distribution across the entire fastened joint.
- Standard-compliant reliability manufactured to ASME B18.6.3 specifications, ensuring dimensional accuracy and interchangeability.
- Environmentally responsible compliance meeting RoHS 3 and REACH regulations, safe for use in regulated industries and global markets.
Professional Applications & Engineering Value
This 1/4"-20 pan head machine screw is engineered to address critical challenges in industrial assembly, where corrosion resistance and mechanical integrity are paramount. The passivated 18-8 stainless steel material provides long-term durability against moisture, chemicals, and oxidation, reducing maintenance costs and downtime. Its fully threaded UNC coarse thread design ensures rapid installation and secure fastening in metal, plastic, and composite materials, commonly used in machinery, automotive components, and electrical enclosures. The pan head with Phillips drive offers a low-profile, flush finish while accommodating standard drivers, making it a versatile choice for OEMs and MRO professionals seeking reliable, ASME B18.6.3-compliant fastening solutions.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy. It is manufactured in compliance with ASME B18.6.3 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both performance reliability and regulatory adherence for industrial and commercial use.
