S-92224A122 4-40 x 1" 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
- Enhanced corrosion resistance with black oxide steel coating for prolonged service life in industrial environments
- Superior holding power from 60,000 psi tensile strength and Rockwell B70 hardness for reliable fastening under stress
- Quick installation with No. 1 Phillips drive and pan head design providing optimal torque transfer and flush seating
- Wide compatibility through UNC coarse threading and Class 2A fit ensuring easy engagement with standard components
- Full-threaded coverage along the 1" length for maximum grip and load distribution across the entire fastener
- Regulatory compliance meeting ASME B18.6.3 specifications plus RoHS 3 and REACH environmental standards
- Versatile rounded head profile offering smooth surface finish and reduced snagging in assembled applications
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 4-40 UNC coarse thread screws solve critical fastening challenges where vibration resistance and material integrity are paramount. The black oxide steel construction provides essential corrosion protection in humid or chemically exposed environments, while the pan head with Phillips drive delivers secure torque application without cam-out issues. With fully threaded design and Class 2A thread fit, these screws maintain consistent clamping force in electronic enclosures, machinery assemblies, and automotive components where coarse threading prevents cross-threading and enables rapid installation. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in high-stress applications without thread stripping or head deformation.
Specification Summary & Compliance
This rounded head screw maintains precise Class 2A thread fit per UNC standards with 4-40 coarse threading and right-hand orientation. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance-free components for global industrial applications.
