S-91772A545 1/4"-20 x 1 3/8" 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 thanks to passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Easy installation and removal with No. 3 Phillips drive that provides secure tool engagement and reduces cam-out risk
- Wide compatibility with UNC coarse 1/4"-20 threading and Class 2A fit ensuring precise engagement with standard nuts and components
- Full-length threading offers maximum grip and holding power across the entire 1-3/8" length for secure fastening
- Regulatory compliance with ASME B18.6.3, RoHS 3, and REACH standards for quality assurance and environmental safety
- Durable pan head design with rounded profile provides a low-profile finish and distributes clamping force effectively
Professional Applications & Engineering Value
This 1/4"-20 pan head screw delivers critical performance in demanding applications where corrosion resistance and structural integrity are paramount. Engineered from passivated 18-8 stainless steel, it withstands exposure to moisture, chemicals, and outdoor elements, making it ideal for machinery, electrical enclosures, and assembly lines. The UNC coarse thread and Class 2A thread fit ensure rapid installation and vibration resistance, while the fully threaded design maximizes pull-out strength. With a Phillips No. 3 drive, it enables efficient fastening in confined spaces, reducing assembly time and improving productivity in industrial maintenance and OEM equipment manufacturing.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for standard dimensional accuracy and reliable engagement. It is manufactured in compliance with ASME B18.6.3 specifications, ensuring consistent quality and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.
