S-91772A881 5/16"-24 x 2 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 humid or chemically aggressive environments
- Exceptional tensile strength of 70,000 psi ensures reliable, long-lasting fastening under high-stress conditions
- Precise Class 2A thread fit with UNF fine threading for secure, vibration-resistant connections in precision assemblies
- Full compliance with ASME B18.6.3 guarantees dimensional accuracy and interchangeability in industrial applications
- Pan head design with No. 4 Phillips drive provides a low-profile, flush finish and easy installation with standard tools
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains
- Fully threaded 2 1/2" length offers maximum grip and adjustment flexibility across material thicknesses
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these passivated 18-8 stainless steel pan head screws deliver critical corrosion resistance where moisture, chemicals, or outdoor exposure threaten fastener integrity. The UNF fine threading and Class 2A thread fit maintain tight tolerances in vibration-prone machinery, preventing loosening in automotive, aerospace, and heavy equipment assemblies. With a 70,000 psi tensile strength, they withstand sustained mechanical loads without failure, while the pan head profile and Phillips drive enable streamlined installation in confined spaces. Ideal for OEM manufacturing, marine hardware, and electrical enclosures, these screws combine material durability with precision engineering to reduce maintenance cycles and enhance product lifespan.
Specification Summary & Compliance
This screw features a 5/16"-24 UNF fine thread with Class 2A dimensional accuracy and is fully threaded along its 2 1/2" length. Manufacturing adheres to ASME B18.6.3 specifications for consistent performance. The product is verified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety standards for industrial use.
