S-90272A331 5-40 x 7/8" ASME B18.6.3 Steel Pan Head Phillips Screws
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 zinc-plated steel construction for extended service life in demanding environments
- Exceptional 60,000 psi tensile strength provides reliable fastening integrity under substantial mechanical stress
- Rockwell B70 hardness rating ensures excellent wear resistance and thread durability
- Full threading design maximizes grip length and distributes load evenly across the entire fastener
- Class 2A thread fit offers optimal assembly clearance while maintaining secure fastening performance
- No. 2 Phillips drive enables efficient installation with standard industrial tools
- Coarse UNC thread pattern facilitates quick assembly and reduces cross-threading risks
Professional Applications & Engineering Value
These 5-40 UNC zinc-plated steel rounded head Phillips screws deliver critical engineering solutions for industrial assembly challenges. The coarse thread configuration combined with Class 2A thread fit provides rapid installation while maintaining precise alignment in high-volume production environments. The zinc-plated surface treatment creates a protective barrier against oxidation and chemical exposure, making these industrial screws ideal for machinery, electrical enclosures, and outdoor equipment applications. The pan head profile with No. 2 Phillips drive ensures flush mounting and reliable torque transmission, while the fully threaded design maximizes engagement depth for superior vibration resistance in dynamic load conditions.
Specification Summary & Compliance
Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent performance. These 5-40 UNC coarse thread screws feature a 7/8" length with standard right-hand threading and meet stringent regulatory requirements including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring environmental responsibility and workplace safety standards are maintained throughout your supply chain.
