S-90275A303 12-24 x 2 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, ensuring durability in harsh industrial environments
• High tensile strength of 60,000 psi provides reliable load-bearing capacity for demanding applications
• Rockwell B70 hardness offers excellent wear resistance and maintains thread integrity under stress
• Class 2A thread fit ensures smooth installation and consistent performance with standard mating components
• 82° countersink angle allows for flush mounting and clean finished appearances
• Full threading along 2 1/2" length maximizes grip strength and distribution across the entire fastener
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality assurance and regulatory adherence

Professional Applications & Engineering Value

This 12-24 UNC flat head slotted screw delivers exceptional engineering value through its zinc-plated steel composition and coarse thread design. The combination of 60,000 psi tensile strength and Rockwell B70 hardness addresses common industrial challenges of vibration loosening and material fatigue. The fully threaded configuration ensures maximum holding power across the entire 2 1/2" length, while the 82° countersink angle provides seamless flush mounting in precision applications. These industrial screws are engineered to maintain integrity in machinery, equipment assembly, and structural frameworks where right-hand thread fasteners require both strength and corrosion protection.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance per UNC standards. The flat head profile conforms to ASME B18.6.3 specifications, ensuring dimensional accuracy and interchangeability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and restricted substance management.