S-90276A578 5/16"-18 x 1/2" ASME B18.6.3 Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction, ensuring longevity in harsh industrial environments.
• Superior holding power from fully threaded UNC coarse threads, providing reliable fastening in various materials.
• High tensile strength of 60,000 psi and Rockwell B69 hardness for dependable performance under heavy loads.
• Easy installation and removal with a standard slotted drive, compatible with common tools for efficient assembly.
• Precise thread fit (Class 2A) ensuring smooth engagement and reduced risk of cross-threading in repetitive applications.
• Rounded head design offers a low-profile finish, minimizing snagging and improving safety in dynamic settings.
• Compliance with ASME B18.6.3 standards guarantees consistent quality and interoperability in mechanical systems.

Professional Applications & Engineering Value

This zinc-plated steel rounded head screw with UNC coarse threads is engineered to address common industrial challenges, such as vibration loosening and environmental wear. The fully threaded design maximizes grip in assemblies, while the slotted drive allows for quick adjustments in tight spaces. Ideal for heavy-duty applications in machinery, automotive, and construction, it provides reliable fastening with 60,000 psi tensile strength and corrosion-resistant plating. By meeting ASME B18.6.3 specifications, it ensures dimensional accuracy and durability, reducing maintenance needs and downtime in demanding environments.

Specification Summary & Compliance

This screw adheres to precise Class 2A thread fit and UNC thread standards for consistent performance. It complies with ASME B18.6.3 manufacturing specifications, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity in industrial use.