S-90272A206 5/16"-18 x 3/8" 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, ensuring long-term durability in harsh industrial environments
- High tensile strength of 60,000 psi provides reliable fastening for demanding applications without failure
- Rockwell B70 hardness maintains structural integrity under heavy loads and repeated use
- Class 2A thread fit with UNC coarse threading enables quick installation and secure holding power
- Fully threaded design offers maximum grip length and consistent engagement across the entire fastener
- Phillips drive with No. 4 size ensures efficient torque transfer and reduced cam-out during installation
- Compliance with ASME B18.6.3, RoHS 3, and REACH standards guarantees quality, safety, and environmental responsibility
Professional Applications & Engineering Value
These zinc-plated steel rounded head screws with 5/16"-18 UNC coarse threading deliver exceptional performance in industrial assembly, machinery, and construction applications. The combination of 60,000 psi tensile strength and Rockwell B70 hardness ensures reliable fastening under vibration and dynamic loads, while the zinc plating provides critical corrosion protection in challenging environments. The pan head profile with Phillips drive offers excellent seating and torque transmission, making them ideal for applications requiring ASME B18.6.3 compliance and consistent Class 2A thread fit precision. These fully threaded screws solve common engineering challenges by providing secure, long-lasting connections that withstand industrial demands while meeting stringent environmental regulations.
Specification Summary & Compliance
This screw features 5/16"-18 UNC coarse threads with Class 2A thread fit tolerance for precise engagement. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use in regulated applications. With fully threaded construction and standardized right-hand threading, these screws deliver consistent performance across industrial fastening requirements.
