S-91772A120 4-40 x 1 3/4" 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 from passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional tensile strength of 70,000 psi ensures reliable performance under heavy mechanical stress
- Rockwell B70 hardness rating provides excellent durability and resistance to wear and deformation
- Fully threaded design delivers maximum holding power and uniform load distribution
- Class 2A thread fit with UNC coarse threading enables quick assembly and secure fastening
- Phillips No. 1 drive system offers efficient installation with standard tools
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality and environmental safety
Professional Applications & Engineering Value
These 4-40 UNC rounded pan head Phillips screws provide critical solutions for industrial applications where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction effectively combats oxidation and chemical exposure in demanding environments such as marine equipment, food processing machinery, and outdoor installations. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures these fully threaded screws maintain integrity under vibration and load stress. The coarse UNC threading with Class 2A fit facilitates rapid assembly while preventing cross-threading, making them ideal for production lines requiring efficient fastening of components in electronics, automotive assemblies, and industrial machinery where consistent performance and regulatory compliance are essential.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse threading specifications. These rounded pan head screws comply with ASME B18.6.3 manufacturing standards and demonstrate full conformity with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both mechanical precision and regulatory adherence for global industrial applications.
