S-90275A168 6-32 x 4" 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 for extended service life in harsh industrial environments
- Exceptional load-bearing capacity with 60,000 psi tensile strength to withstand high-stress applications
- Optimized thread engagement through UNC coarse threading and Class 2A fit ensures secure fastening and vibration resistance
- Flush mounting capability with standard 82° countersink angle for smooth surface finishes and reduced snagging
- Enhanced durability with Rockwell B70 hardness providing excellent resistance to wear and deformation
- Full-length threading allows for maximum grip strength and adjustable positioning along the entire shank
- Industry compliance assurance meeting ASME B18.6.3 specifications for reliable performance and interchangeability
Professional Applications & Engineering Value
This zinc-plated steel flat head screw delivers critical engineering solutions for industrial assembly challenges. The combination of UNC coarse threading and Class 2A thread fit provides rapid installation with consistent clamping force, while the 82° countersink angle ensures flush mounting in metal fabrication and machinery applications. The 60,000 psi tensile strength and Rockwell B70 hardness make it ideal for heavy-duty fastening in equipment manufacturing, automotive assemblies, and structural frameworks where vibration resistance and long-term reliability are paramount. The slotted drive design offers compatibility with standard tools for maintenance accessibility across various industrial sectors.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (6-32 size) and standardized dimensions per ASME B18.6.3 specifications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries. The 4" length with fully threaded design maintains consistent performance across the entire fastener engagement area.
