S-90275A144 6-32 x 1/4" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• High tensile strength of 60,000 psi ensures reliable fastening under significant mechanical stress and vibration
• Rockwell B70 hardness provides excellent wear resistance and maintains thread integrity during repeated installations
• Class 2A thread fit with UNC coarse threading enables quick assembly and reduces cross-threading risks in production environments
• 82° countersink angle with standard flat head profile creates flush surface finishes for streamlined assemblies and improved safety
• Full compliance with ASME B18.6.3 standards guarantees dimensional accuracy and interchangeability with existing components
• RoHS 3 and REACH compliance ensures environmental responsibility and global regulatory acceptance for international projects

Professional Applications & Engineering Value

This zinc-plated steel flat head screw delivers exceptional engineering value across industrial applications where reliability and precision are paramount. The combination of 60,000 psi tensile strength and Rockwell B70 hardness addresses common failure points in vibrating machinery and heavy-duty equipment. The UNC coarse threading with Class 2A fit provides rapid installation in production lines while maintaining secure fastening. The 82° countersink angle ensures seamless integration into angled surfaces, eliminating protrusions that could compromise product functionality or safety. These fully threaded screws are particularly valuable in electrical enclosures, machinery assembly, and automotive components where zinc plating offers essential corrosion protection. The compliance with ASME B18.6.3 standards guarantees consistent performance and interchangeability, reducing downtime and maintenance costs in industrial operations.

Specification Summary & Compliance

This 6-32 x 1/4" flat head slotted screw maintains precise Class 2A thread fit tolerances with UNC coarse threading in the inch measurement system. Manufacturing specifications strictly adhere to ASME B18.6.3 standards for dimensional accuracy and performance reliability. The product fully complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) requirements for chemical safety, ensuring global regulatory acceptance for industrial applications.