S-96242A631 5/16"-18 x 3/4" 12-Point Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh environments and reducing long-term replacement costs.
• Superior high-torque capability with the external 12-point drive and 3/8" drive size, preventing tool slippage and ensuring secure installation.
• Reliable, vibration-resistant fastening due to the Class 3A thread fit and UNC coarse threading, minimizing the risk of loosening in dynamic applications.
• Enhanced load distribution and retention provided by the integrated 5/8" flange, eliminating the need for a separate washer and speeding up assembly.
• Maximum grip and holding power from the fully threaded design and a high 170,000 psi tensile strength, ensuring joint integrity under extreme stress.
• Consistent performance and durability backed by a Rockwell C37 hardness, offering excellent wear resistance for long service life.
• Streamlined installation process with the right-hand thread and 3/4" length, making it a versatile and efficient choice for various industrial assemblies.

Professional Applications & Engineering Value

This 12-Point Flanged Screw is engineered to solve critical challenges in heavy-duty and precision assemblies. The 18-8 Stainless Steel material provides outstanding resistance to rust and corrosion, making it perfect for applications in chemical processing, marine equipment, and food machinery where environmental factors degrade standard fasteners. The external 12-point drive and flanged design work in tandem to deliver high clamp force and distribute load effectively, preventing surface damage and reducing assembly time by omitting washers. With a Class 3A thread fit and UNC coarse threading, it ensures a precise, secure fit that resists vibration-induced loosening in machinery, automotive systems, and structural frameworks. This combination of high tensile strength and corrosion resistance offers a reliable, long-lasting fastening solution that minimizes maintenance and downtime.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Key dimensional specifications include a 5/16"-18 thread size, 3/4" length, 5/8" flange diameter, and 3/8" drive size. The 18-8 Stainless Steel construction ensures compliance with common industry requirements for corrosion resistance, and the manufacturing process aligns with standard engineering practices for high-strength industrial fasteners.