S-91783A583 5/16"-18 x 1" ASME B18.6.3 Stainless Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh environments
• Exceptional mechanical strength delivering 100,000 psi tensile strength for heavy-duty load-bearing applications
• Precision thread engagement with Class 2A UNC coarse threads ensuring reliable fastening and easy installation
• Durable rounded head design with slotted drive providing secure torque transmission and reduced head stripping
• Full threading along 1" length for maximum grip and uniform stress distribution across joined materials
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

This 5/16"-18 UNC fully threaded screw delivers critical performance in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The 18-8 stainless steel construction with passivated finish provides enhanced protection against chemical exposure and atmospheric corrosion, making it ideal for marine, food processing, and chemical plant applications. The rounded head slotted design offers superior torque transmission while minimizing stress concentration points. With coarse threading and Class 2A thread fit, installation is streamlined even in challenging materials, reducing assembly time and improving production efficiency. These industrial screws maintain integrity under vibration and thermal cycling, ensuring long-term fastening security in machinery, equipment manufacturing, and structural assemblies.

Specification Summary & Compliance

This rounded head slotted screw features precise 5/16"-18 UNC coarse threads with Class 2A thread fit per ASME B18.6.3 standards, ensuring dimensional accuracy and interchangeability. The manufacturing process adheres to ASME B18.6.3 specifications for consistent quality control. Regulatory compliance includes RoHS 3 (2015/863/EU) compliance for restricted substance management and REACH (EC 1907/2006) compliance for chemical safety, meeting the latest regulatory requirements for industrial components.