S-92224A227 1/4"-20 x 1 1/4" 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 black oxide steel finish for extended service life in demanding industrial environments
- Exceptional mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
- Optimized drive engagement through Phillips No. 3 drive design ensuring secure installation and reduced cam-out risk
- Precision thread compatibility with Class 2A UNC coarse threads providing excellent mating and vibration resistance
- Full-threaded design delivering maximum grip length and uniform stress distribution across the entire fastener
- Standard-compliant manufacturing meeting ASME B18.6.3 specifications for consistent dimensional accuracy and interchangeability
- Environmental compliance with RoHS 3 and REACH regulations for safe use across global industrial applications
Professional Applications & Engineering Value
These black oxide steel Phillips pan head screws deliver critical engineering advantages for industrial assembly applications where corrosion resistance and mechanical reliability are paramount. The combination of fully threaded UNC coarse threads and Class 2A thread fit ensures rapid installation with superior vibration resistance in machinery, equipment manufacturing, and structural frameworks. The rounded pan head profile with Phillips No. 3 drive provides flush mounting capabilities while maintaining high torque transmission efficiency. Engineered to withstand demanding conditions, these screws offer consistent performance in automotive assemblies, electrical enclosures, and industrial machinery where 60,000 psi tensile strength and Rockwell B70 hardness prevent stripping and deformation under dynamic loads.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 standards with Class 2A thread fit tolerances ensuring precise dimensional accuracy and interchangeability. Features 1/4"-20 UNC coarse threads with right-hand orientation and full threading along the 1-1/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for global industrial applications.
