S-90275A645 3/8"-16 x 5" ASME B18.6.3 Steel Slotted Flat Head Screws
Steel Slotted Flat Head 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 load-bearing capacity with 60,000 psi tensile strength, ensuring reliable performance under heavy-duty applications
- Optimized flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Precision thread engagement through Class 2A thread fit and UNC coarse threading, enabling faster assembly and reduced cross-threading risks
- Enhanced durability with Rockwell B70 hardness, maintaining structural integrity under repeated stress and vibration
- Full-length threading for maximum grip strength across the entire 5" length, ideal for thick material sections
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental directives (RoHS 3, REACH)
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these zinc-plated steel flat head screws solve critical fastening challenges where surface flushness and corrosion resistance are paramount. The UNC coarse threading combined with Class 2A thread fit ensures rapid installation in metal fabrication, machinery assembly, and structural frameworks while minimizing thread stripping. The 82° countersink angle provides secure seating in tapered holes, preventing head protrusion in conveyor systems, equipment panels, and automotive components. With full threading along the 5" length, these heavy-duty screws maintain consistent clamping force through layered materials, making them ideal for construction and manufacturing where vibration resistance and long-term reliability are essential.
Specification Summary & Compliance
This flat head slotted screw maintains precision Class 2A thread fit per UNC standards with right-hand coarse spacing. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product is verified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations for industrial fastener applications.
