S-91735A540 1/4"-20 x 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 with 316 stainless steel construction, ideal for harsh chemical and marine environments
- Enhanced durability and longevity from passivated surface treatment that provides extra protection against oxidation
- Reliable fastening performance with fully threaded design ensuring maximum grip and holding power
- Optimized drive engagement through Phillips No. 3 drive that prevents cam-out and enables efficient installation
- Consistent thread quality with UNC coarse threads and Class 2A fit for easy assembly and secure connections
- High mechanical strength delivering 80,000 psi tensile strength and Rockwell B85 hardness for demanding applications
- Standardized dimensions with pan head profile ensuring compatibility with common tools and fixtures
Professional Applications & Engineering Value
These 316 stainless steel pan head Phillips screws provide critical corrosion resistance where ordinary fasteners fail. The passivated finish creates a protective oxide layer that withstands chlorides, acids, and moisture exposure in chemical processing, marine hardware, and food equipment applications. With fully threaded UNC coarse threads and Class 2A fit, they ensure rapid assembly while maintaining vibration resistance in machinery, electrical enclosures, and structural frameworks. The combination of 80,000 psi tensile strength and Rockwell B85 hardness makes these industrial screws suitable for high-stress applications where material integrity and long-term performance are paramount.
Specification Summary & Compliance
This 1/4"-20 x 3/4" screw features UNC coarse threads with Class 2A thread fit per ASME B18.6.3 specifications. Manufacturing complies with ASME B18.6.3 standards for dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental responsibility and regulatory adherence for global industrial supply chains.
