S-90280A550 1/4"-20 x 2" ASME B18.6.3 Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments
• High tensile strength of 60,000 psi provides reliable load-bearing capacity for heavy-duty applications and structural integrity
• Rockwell B69 hardness rating offers excellent wear resistance and maintains thread integrity during repeated installations
• Class 2A thread fit with UNC coarse spacing enables quick assembly and secure fastening while accommodating minor misalignments
• Fully threaded design ensures maximum grip length and consistent holding power along the entire 2" length
• Fillister head with high, narrow profile allows for deeper tool engagement and provides a professional finished appearance
• Slotted drive compatibility offers versatility with standard screwdrivers for easy installation and maintenance

Professional Applications & Engineering Value

This zinc-plated steel fillister head screw delivers exceptional engineering value across multiple industrial sectors. The combination of 60,000 psi tensile strength and Rockwell B69 hardness makes it ideal for machinery assembly, electrical enclosures, and automotive components where vibration resistance and structural integrity are critical. The UNC coarse thread spacing with Class 2A fit ensures rapid installation in production environments while maintaining secure fastening. The zinc plating provides essential corrosion protection for outdoor equipment, marine applications, and industrial settings exposed to moisture or chemicals. The high, narrow fillister head profile offers superior torque transmission and sits flush with surfaces, making it perfect for applications requiring both aesthetic appeal and functional performance in rounded head screw configurations.

Specification Summary & Compliance

This 1/4"-20 x 2" fillister head slotted screw features precise Class 2A thread fit tolerance with UNC coarse thread spacing in right-hand orientation. Manufactured to ASME B18.6.3 specifications, ensuring dimensional accuracy and interchangeability. The product maintains full compliance with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding substance restrictions, making it suitable for global industrial applications with stringent environmental requirements.