S-90275A213 8-32 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, ensuring long-term reliability in harsh industrial environments.
- High tensile strength of 60,000 psi provides exceptional load-bearing capacity for demanding applications.
- Rockwell B70 hardness offers excellent durability and resistance to wear and deformation.
- Fully threaded 4" length with coarse UNC spacing enables faster installation and superior holding power in various materials.
- 82° countersink angle and flat head design allows for a flush, secure fit that minimizes protrusion and improves safety.
- Class 2A thread fit ensures consistent, reliable engagement with standard nuts and tapped holes.
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations.
Professional Applications & Engineering Value
This 8-32 UNC zinc-plated steel flat head screw is engineered to address critical industrial fastening challenges, such as vibration resistance and environmental exposure. The zinc-plated finish provides a protective barrier against corrosion, extending service life in machinery, automotive assemblies, and outdoor equipment. With a coarse thread and fully threaded 4" length, it ensures rapid installation and robust clamping force in wood, metal, and composite materials. The 82° countersink angle facilitates a seamless, low-profile fit, reducing snag risks and enhancing aesthetic integration. Ideal for heavy-duty fasteners in construction and manufacturing, it combines high tensile strength and Rockwell B70 hardness to prevent stripping and withstand dynamic loads, delivering reliable performance in rigorous applications.
Specification Summary & Compliance
This screw features precise Class 2A thread fit per UNC standards, ensuring dimensional accuracy and compatibility. It meets ASME B18.6.3 specifications for flat head screws, with a right-hand thread and slotted drive for standardized use. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), affirming adherence to environmental and safety regulations for industrial components.
