S-91271A843 3/4"-10 x 2" IFI 115 12-Point Screws

Key Features & Benefits at a Glance

• Superior torque transmission with the external 12-point drive and 3/4" drive size, enabling high-tightening forces and reducing the risk of tool slippage in demanding applications.
• Exceptional strength and durability from the alloy steel construction, providing a high tensile strength of 170,000 psi and Rockwell C37 hardness for reliable performance under heavy loads.
• Enhanced load distribution and component stability thanks to the integrated flange, which eliminates the need for a separate washer and provides a larger bearing surface.
• Precise and reliable thread engagement with the UNC coarse thread and Class 3A fit, ensuring consistent clamping force and vibration resistance in right-hand threaded assemblies.
• Streamlined installation and full-length grip with the fully threaded 2" length, allowing for deep penetration and secure fastening across the entire shank.
• Guaranteed material integrity and environmental compliance, meeting IFI 115 specifications and being RoHS 3 and REACH compliant for safe use in regulated industries.

Professional Applications & Engineering Value

This 12-point flanged screw is engineered to solve critical challenges in heavy machinery, construction, and high-vibration industrial equipment. The alloy steel material, combined with the Rockwell C37 hardness and 170,000 psi tensile strength, ensures it can withstand extreme mechanical stresses without failing. The external 12-point drive allows for high torque application, making it ideal for assemblies requiring significant clamping force, while the UNC coarse threading and Class 3A thread fit provide superior resistance to loosening under dynamic loads. The integrated flange distributes pressure evenly, protecting softer materials and simplifying the assembly process by removing the need for an additional washer. This makes it a vital component for heavy-duty fastening in sectors like automotive, aerospace, and structural engineering, where reliability and compliance with IFI 115 standards are non-negotiable.

Specification Summary & Compliance

This screw adheres to precise dimensional and performance criteria, including a Class 3A thread fit for high precision in UNC coarse threading (3/4"-10). It is manufactured in accordance with IFI 115 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.