S-90275A291 12-24 x 1/2" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ideal for harsh industrial environments
• High tensile strength of 60,000 psi ensures reliable load-bearing capacity and joint integrity
• Rockwell B70 hardness provides excellent wear resistance and durability under repeated use
• Class 2A thread fit offers smooth assembly and consistent fastening performance
• 82° countersink angle enables flush mounting for clean, professional finishes
• Fully threaded design maximizes grip length and holding power in various materials
• Slotted drive style allows for easy installation with standard tools

Professional Applications & Engineering Value

These 12-24 UNC flat head screws deliver exceptional engineering value in demanding applications where corrosion resistance and structural integrity are paramount. Manufactured from zinc-plated steel with coarse UNC threading, they provide superior anti-loosening performance in vibration-prone environments while the 82° countersink angle ensures seamless integration into machinery, equipment, and structural assemblies. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes these fully threaded fasteners ideal for automotive, manufacturing, and construction applications requiring reliable, long-term fastening solutions that withstand mechanical stress and environmental exposure.

Specification Summary & Compliance

This 1/2" flat head screw features precise Class 2A thread fit with UNC coarse threading (12-24) and right-hand thread direction. Manufactured to ASME B18.6.3 specifications with standard flat head profile and slotted drive style. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable industrial use.