S-91735A316 5-40 x 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 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B85 hardness for reliable load-bearing performance
- Precise Class 2A thread fit with UNC coarse threading ensuring secure, vibration-resistant connections in demanding applications
- Optimized drive engagement through Phillips No. 2 drive design, enabling efficient installation with standard tools
- Full threading along the 1/2" length provides maximum grip and uniform stress distribution across joined materials
- Compliant with major industry standards including ASME B18.6.3, RoHS 3, and REACH for guaranteed quality and environmental safety
- Rounded pan head profile offers a low-profile, snag-resistant design while maintaining ample drive engagement surface
Professional Applications & Engineering Value
These 5-40 UNC rounded head screws in 316 stainless steel address critical challenges in industrial fastening where corrosion resistance and mechanical reliability are paramount. The combination of passivated finish and marine-grade stainless steel material prevents degradation in chemically aggressive environments, from marine equipment to chemical processing plants. The coarse UNC threading with Class 2A tolerance ensures rapid assembly and maintains connection integrity under vibration, while the fully threaded design maximizes engagement in both thin and thick materials. With 80,000 psi tensile strength, these Phillips drive screws provide engineering-grade performance for machinery assembly, electrical enclosures, and structural applications where failure is not an option.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread profile. Complies with ASME B18.6.3 specifications for mechanical and dimensional requirements. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards. Features include 1/2" length, 5-40 thread size, right-hand threading, and pan head style with standard rounded profile.
