S-90279A826 10-32 x 5/16" ASME B18.6.3 Steel Round Head Phillips Screws
Steel Round 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, extending service life in harsh industrial environments
- Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B69 hardness for reliable load-bearing performance
- Precision thread engagement with Class 2A fit and UNF fine threading ensuring secure fastening and vibration resistance
- Optimized drive efficiency through Phillips No. 2 drive design, reducing cam-out risks during installation
- Full-threaded design providing maximum grip length and uniform stress distribution across applications
- Regulatory compliance assurance meeting ASME B18.6.3 manufacturing standards and environmental regulations (RoHS 3/REACH)
- Versatile rounded head profile offering smooth surface finish and reduced snagging in assembled components
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 10-32 UNF screws with zinc-plated steel construction address critical challenges in machinery assembly, electronic enclosures, and precision equipment. The fine thread configuration and Class 2A thread fit prevent loosening under vibration while maintaining consistent clamping force. The Phillips drive system ensures efficient torque transfer during high-volume installations, reducing worker fatigue and assembly time. With full threading along the 5/16" length, these rounded head screws provide complete thread engagement in both thin and thick materials, eliminating the need for multiple fastener types across different joint thicknesses.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for precision assembly. The UNF 10-32 thread maintains consistent pitch and diameter (0.19") for reliable mating with corresponding nuts and tapped holes. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across regulated industries. The zinc-plated steel construction provides consistent performance within the specified hardness (Rockwell B69) and tensile strength (60,000 psi) parameters.
