S-91271A641 3/8"-24 x 1" IFI 115 12-Point Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Precision Class 3A thread fit provides superior engagement and vibration resistance, maintaining joint integrity in demanding environments.
• Integrated flange design eliminates the need for separate washers, speeding up assembly and providing a larger bearing surface for improved load distribution.
• Alloy steel construction with Rockwell C37 hardness offers excellent durability and wear resistance, extending service life under repetitive loads.
• External 12-point drive allows for high-torque installation with standard tools, ensuring secure fastening in confined spaces.
• Full threading and fine UNF pitch deliver enhanced grip and adjustment precision, ideal for applications requiring fine-tuning.
• Compliance with IFI 115, RoHS 3, and REACH guarantees material safety and regulatory adherence for global industrial use.

Professional Applications & Engineering Value

This 12-point flanged screw is engineered to address critical challenges in heavy machinery, automotive, and aerospace assemblies where vibration loosening and high tensile loads are common. The alloy steel composition, combined with Class 3A UNF fine threads, ensures minimal backlash and superior fatigue resistance, preventing joint failure in dynamic environments. The external 12-point drive facilitates efficient installation with standard wrenches, reducing assembly time while the integrated flange distributes clamping force evenly, protecting sensitive components. Ideal for engine mounts, structural frames, and precision equipment, this screw delivers consistent performance where reliability and regulatory compliance are non-negotiable.

Specification Summary & Compliance

This screw features a 3/8"-24 UNF fine thread with Class 3A fit for precise tolerance, fully threaded for maximum holding power. It meets IFI 115 specifications for dimensional accuracy and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity. With a length of 1" and flange diameter of 9/16", it is manufactured to support industrial standards requiring high strength and durability.