S-98130A170 3/8"-16 x 1 1/2" Pentagon Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing maintenance costs.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under high-stress conditions.
• Tamper-resistant external pentagon drive with a 13/16" drive size, providing enhanced security and preventing unauthorized removal.
• Precise and reliable thread engagement with UNC coarse threading and Class 2A fit, ensuring easy installation and consistent clamping force.
• Full threading along the 1 1/2" length for maximum grip and uniform load distribution across the entire fastener.
• Compliance with strict environmental standards, including RoHS 3 and REACH, ensuring safety and regulatory acceptance in global markets.
• Durable right-hand thread design for standard applications, offering long-term reliability and resistance to loosening.

Professional Applications & Engineering Value

This 3/8"-16 UNC pentagon head screw is engineered to address critical industrial challenges, such as vibration-induced loosening and corrosion in demanding environments. Made from 18-8 stainless steel, it provides excellent resistance to rust and chemical exposure, making it suitable for outdoor machinery, marine equipment, and chemical processing plants. The external pentagon drive and coarse UNC threading enable quick, secure installation with common tools, reducing assembly time and minimizing the risk of stripping. Its fully threaded design ensures consistent holding power across the entire length, ideal for heavy-duty applications where uniform stress distribution is essential. By combining high tensile strength with a tamper-resistant head, this fastener delivers reliable performance in construction, automotive, and manufacturing sectors, enhancing operational safety and longevity.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, including Class 2A thread fit for consistent accuracy and UNC coarse threading with a 3/8"-16 size. It is manufactured in accordance with inch system measurements and meets regulatory requirements such as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for international industrial use.