S-90275A340 1/2"-13 x 1 3/4" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term durability in harsh industrial environments
• Exceptional load-bearing capacity with 60,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high stress
• Precise flush mounting enabled by the standard flat head profile and 82° countersink angle for seamless surface integration
• Easy manual installation and removal with slotted drive design, compatible with standard screwdrivers
• Consistent thread engagement through Class 2A thread fit and coarse UNC threading, reducing cross-threading risks
• Full-length threading provides maximum grip along the entire 1-3/4" length for enhanced fastening security
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 1/2"-13 UNC flat head screw delivers critical engineering solutions for industrial assembly challenges. The zinc-plated steel construction provides essential corrosion protection in manufacturing facilities, automotive applications, and outdoor equipment where environmental exposure is a concern. The coarse thread spacing and Class 2A thread fit ensure rapid installation while maintaining precise tolerance control, significantly reducing assembly time in high-volume production environments. The 82° countersink angle and flat head design create flush surface mounting, eliminating protrusions that could interfere with moving components or create safety hazards. With 60,000 psi tensile strength, this fastener maintains structural integrity in vibration-prone applications, making it ideal for machinery, structural frameworks, and heavy equipment where joint failure is not an option.

Specification Summary & Compliance

This flat head slotted screw features 1/2"-13 UNC coarse threads with Class 2A thread fit for standard tolerance applications. Manufacturing complies with ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to restricted substance requirements for industrial use.