S-90275A289 12-24 x 3/8" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• High tensile strength of 60,000 PSI ensures reliable fastening under substantial mechanical loads
• Rockwell B70 hardness provides excellent wear resistance and durability
• Class 2A thread fit offers consistent, reliable assembly with standard mating components
• 82° undercut flat head design enables flush mounting while maximizing countersink engagement
• Fully threaded configuration delivers maximum grip length and holding power
• Compliance with ASME B18.6.3 guarantees dimensional accuracy and interchangeability

Professional Applications & Engineering Value

These 12-24 UNC flat head screws deliver exceptional engineering value across industrial applications where flush mounting and high strength are critical. The zinc-plated steel construction provides reliable corrosion protection for machinery, electrical enclosures, and automotive assemblies. The 82° countersink angle with undercut profile ensures secure, flush seating in tapered holes, preventing protrusion in precision equipment. With coarse UNC threads and Class 2A fit, these fasteners offer quick assembly and reliable performance in vibration-prone environments. The fully threaded design maximizes engagement in thin materials and complex assemblies, while the slotted drive accommodates standard installation tools for maintenance-friendly applications.

Specification Summary & Compliance

This 3/8" length flat head screw features precise Class 2A thread fit per UNC standards with 12-24 coarse threading. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental responsibility and regulatory adherence for global industrial applications.