S-90272A309 1/4"-20 x 2 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
- Exceptional corrosion resistance with zinc plating for long-lasting performance in demanding industrial environments
- Superior holding power achieved through fully threaded UNC coarse design and Class 2A fit for reliable fastening
- High mechanical strength with 60,000 PSI tensile strength and Rockwell B70 hardness to withstand heavy loads
- Quick and secure installation enabled by Phillips No. 3 drive and standard pan head design
- Broad compatibility with right-hand threaded applications across various industrial equipment
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations
- Optimized for industrial use with 2-1/4" length providing versatile fastening solutions
Professional Applications & Engineering Value
These zinc-plated steel machine screws deliver critical engineering advantages for industrial applications where vibration resistance and long-term reliability are paramount. The combination of UNC coarse threading with Class 2A fit ensures rapid installation while maintaining secure fastening in machinery, equipment assembly, and structural applications. The Phillips drive system with No. 3 size provides efficient torque transfer during installation, reducing operator fatigue in high-volume production environments. The zinc-plated steel construction offers excellent corrosion protection, extending service life in challenging conditions while the pan head design provides a low-profile finish suitable for various industrial configurations.
Specification Summary & Compliance
This machine screw features precise Class 2A thread fit with UNC coarse threading (1/4"-20) and full threading along the 2-1/4" length. Manufactured to ASME B18.6.3 specifications with dimensional accuracy including 0.492" head diameter and 0.175" head height. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
