S-91271A570 1/4"-28 x 3/4" IFI 115 12-Point Screws

Key Features & Benefits at a Glance

• Superior strength for demanding applications with 170,000 psi tensile strength and Rockwell C37 hardness, ensuring reliable performance under high stress.
• Precise, secure fastening achieved through Class 3A UNF fine threading, offering a tighter fit and improved vibration resistance compared to standard threads.
• Efficient installation and high torque capability enabled by the external 12-point drive and head, allowing for use in confined spaces and with high-torque tools.
• Enhanced load distribution and component protection provided by the integrated flange, which eliminates the need for a separate washer.
• Long-term durability in harsh environments thanks to the robust alloy steel construction, resisting wear and deformation.
• Full thread engagement for maximum grip along the entire 3/4" length, ensuring a strong and consistent hold.
• Guaranteed quality and material safety as the screw meets IFI 115 specifications and is compliant with RoHS 3 and REACH environmental regulations.

Professional Applications & Engineering Value

This 12-point flanged screw is engineered to solve critical fastening challenges in industrial applications where reliability is non-negotiable. The alloy steel construction provides exceptional tensile strength and hardness, preventing failure in high-vibration or heavy-load environments like machinery, automotive assemblies, and heavy equipment. The Class 3A UNF fine thread ensures a precise, leak-resistant fit, crucial for maintaining integrity in pressurized systems. The integrated flange distributes clamping force effectively, protecting sensitive surfaces and simplifying assembly by removing the washer requirement. Combined with the external 12-point drive, it allows for efficient installation in tight spaces, reducing labor time and improving overall structural integrity in demanding engineering projects.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF fine thread with a Class 3A thread fit for high precision. It is fully threaded and right-hand direction. Manufacturing and quality adhere to IFI 115 specifications. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances for safe use in various industrial sectors.