S-91772A546 1/4"-20 x 1 1/2" 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
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Optimized torque transmission through Phillips No. 3 drive and standard pan head design, preventing cam-out during installation
- Quick and secure fastening with UNC coarse threading and Class 2A thread fit, ensuring consistent engagement in various materials
- Full-length threading provides maximum grip along the entire 1-1/2" length for enhanced holding power
- Regulatory compliance meets ASME B18.6.3 standards and environmental regulations (RoHS 3, REACH) for global industrial use
- Versatile right-hand thread design compatible with standard installation tools and procedures
Professional Applications & Engineering Value
This 1/4-20 pan head screw delivers critical engineering solutions where corrosion resistance and mechanical reliability are paramount. The passivated 18-8 stainless steel construction effectively combats oxidation and chemical degradation in demanding environments such as marine equipment, food processing machinery, and outdoor structures. The UNC coarse thread configuration with Class 2A fit ensures rapid installation and vibration resistance, while the Phillips No. 3 drive and pan head profile provide superior torque control without stripping. These fully threaded screws maintain consistent clamping force across the entire engagement length, making them ideal for assembly lines, structural frameworks, and maintenance operations requiring durable industrial fasteners.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread specifications (1/4"-20). Complies with ASME B18.6.3 mechanical and dimensional requirements. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance. Threading is fully threaded with right-hand direction, and head features standard pan profile with 0.492" diameter.
