Böllhoff Thread Repair Insert Stainless Steel/Inconel, Drill Size 8.4 mm, Thread Length 12 mm 41890080012

Böllhoff 41890080012 Thread Repair Insert offers reliable restoration and reinforcement of metric threads in a variety of mechanical components. Designed for installation with an 8.4 mm drill size, this threaded insert ensures precise fit and robust performance, restoring the function of damaged or worn threads.

Manufactured from Stainless Steel A2, with versions available in Inconel x 750 and silver plating for Lambda probe thread applications, the insert delivers enhanced resistance to corrosion and high temperature environments. The 12 mm thread length provides strong engagement and durability in assembly, making it suitable for both repair and new installations.

This product is certified to international standards such as Germanischer Lloyd, TÜV, LN 9039, DET Norske Veritas, EN 2944, DIN 65536, DIN 8140, and LN 9490, ensuring compliance with rigorous mechanical engineering requirements. The insert is a spare metric HELICOIL plus component, designed for effective use in fasteners and fixings, especially sheet metal and panel environments.

Applications include mechanical maintenance, sheet metal restoration, industrial machinery repair, automotive Lambda probe thread replacement, and other environments where thread integrity must be maintained or restored. The combination of premium materials and certification means it is widely accepted for use in critical industrial sectors and demanding conditions.

Industrial engineers, maintenance professionals, and manufacturers rely on Böllhoff thread repair inserts for restoring strength and function to worn or stripped threads, supporting efficient operations and reducing downtime in mechanical and fluid power systems. Explore the full range of Threaded Inserts and fastener solutions from Böllhoff and other recognized manufacturers in the Industrial Fasteners category on EnvMart.