S-90272A544 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 zinc-plated steel construction, extending service life in harsh industrial environments
- Excellent holding power from fully threaded UNC coarse thread design, ensuring reliable fastening in various materials
- High tensile strength of 60,000 PSI provides dependable load-bearing capacity for demanding applications
- Rockwell B70 hardness maintains structural integrity under vibration and stress, reducing wear and failure risks
- Class 2A thread fit offers consistent, precise engagement for easier assembly and reduced cross-threading
- Comfortable installation with Phillips No. 3 drive and rounded pan head, minimizing tool slippage and operator fatigue
- Broad compliance with ASME B18.6.3, RoHS 3, and REACH ensures safety and regulatory acceptance in global markets
Professional Applications & Engineering Value
Engineered for industrial durability, these zinc-plated steel pan head screws address common fastening challenges in machinery, equipment assembly, and structural frameworks. The UNC coarse thread design enhances grip in soft materials and resists loosening under vibration, while the fully threaded configuration distributes stress evenly along the shank. With a 60,000 PSI tensile strength and Rockwell B70 hardness, they withstand high-load conditions without deformation. The Phillips drive and rounded head profile simplify installation in tight spaces, reducing assembly time. Ideal for automotive, construction, and manufacturing sectors, these screws deliver reliable performance where corrosion resistance and regulatory compliance are critical.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy for consistent fastening. Manufactured to meet ASME B18.6.3 specifications, it guarantees mechanical reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and sustainable industrial practices.
