Helicoil Replacement Inserts, 1/4″ x 28 NF, 12 Pack (R1191-4)

Helicoil R1191-4 Replacement Inserts, 1/4″ x 28 NF, 12 Pack provide a reliable and durable solution for repairing threads in metal materials. These inserts are essential for restoring damaged or stripped threads, offering strength and precision for a variety of applications.Features: Pack includes 12 high-quality inserts for comprehensive thread repair tasks. Internal thread size: 1/4″ x 28 NF, ideal for fine-threaded applications in metal components. Durable 304 stainless steel construction ensures long-lasting performance. Free running design for smooth installation and proper fit. Thread direction: Right hand, compatible with standard fine threads.Benefits: Restores damaged or stripped threads, extending the life of your components. Prevents the need for expensive replacements by offering a cost-effective solution. Easy to store and access, with each insert neatly packed in a 12-pack container.Technical Specifications: Model: R1191-4 Thread Size: 1/4″ x 28 NF Material: Stainless Steel Thread Type: UNF (Fine Thread) Free Coil Diameter: 0.213 in Length: 0.246 in Tensile Strength: 200,000 to 250,000 PSI Rockwell Hardness: C43-C50 Package Size: 12 inserts Application: Metal thread repair