S-91783A722 1/2"-13 x 2 1/2" ASME B18.6.3 Stainless Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for heavy-duty applications
• Reliable coarse threading with UNC pattern and Class 2A fit ensures vibration resistance and secure fastening
• Optimized partial threading design provides enhanced grip and reduced installation time in structural assemblies
• Standard slotted drive offers compatibility with common tools for straightforward installation and maintenance
• Rounded head profile minimizes snagging risks and improves safety in machinery and equipment
• Full regulatory compliance with ASME B18.6.3, RoHS 3, and REACH for global industrial supply chain integration

Professional Applications & Engineering Value

This 1/2"-13 UNC rounded head slotted screw delivers critical performance in demanding industrial applications where corrosion resistance and mechanical integrity are paramount. Constructed from 18-8 Stainless Steel with a passivated finish, it effectively withstands exposure to moisture, chemicals, and outdoor elements, preventing premature failure in machinery, structural frameworks, and processing equipment. The coarse thread design and Class 2A fit provide excellent engagement in both metal and composite materials, reducing the risk of loosening under dynamic loads. Its partially threaded shank concentrates clamping force precisely where needed, making it ideal for securing heavy components in construction, automotive, and marine engineering projects where vibration resistance and long-term reliability are essential.

Specification Summary & Compliance

This screw features a 1/2"-13 UNC coarse thread with Class 2A dimensional tolerance, ensuring consistent fit and performance. It is manufactured in compliance with ASME B18.6.3 specifications for dimensional and mechanical requirements. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.