S-91440A159 6-32 x 2" ASME B18.6.3 Steel Round Head Combination Phillips/Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ideal for demanding industrial environments
• High tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration
• Dual Phillips/Slotted drive (No. 2) provides versatile installation options with standard tools
• Fully threaded UNC coarse design delivers faster assembly and stronger holding power in various materials
• Class 2A thread fit guarantees consistent, precise engagement while maintaining easy installation
• Rounded head profile offers a finished appearance and reduces surface snagging risks
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality, safety, and environmental responsibility

Professional Applications & Engineering Value

This zinc-plated steel rounded head screw is engineered to address common industrial challenges such as corrosion, mechanical stress, and assembly efficiency. The UNC coarse thread and fully threaded design provide excellent grip in metal, wood, and plastic substrates, reducing the risk of stripping and improving load distribution. With a Rockwell B70 hardness and 60,000 psi tensile strength, it withstands high-torque applications in machinery, construction, and electrical enclosures. The dual Phillips/Slotted drive accommodates various tool types, streamlining maintenance and production workflows while the zinc plating extends service life in humid or outdoor settings.

Specification Summary & Compliance

This screw meets Class 2A thread fit tolerances per UNC standards, ensuring dimensional accuracy and interchangeability. Manufacturing adheres to ASME B18.6.3 specifications for consistent quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances for safe industrial and commercial use.