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.
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.
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:
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
Product identification
- Brand: Helicoil
- Model / MPN: R1191-4




