Choose from our selection of thread repair inserts, including over 3,400 products in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of thread repair kits, including threaded inserts, threading, and more. Same and Next Day Delivery.

O'Reilly Auto Parts has the parts and accessories, tools, and the knowledge you may need to repair your vehicle the right way. Shop O'Reilly Auto Parts online.

Choose from our selection of HeliCoil insert repair kits, including helical inserts, helical insert assortments, and more. Same and Next Day Delivery.

Threaded inserts repair stripped threads or create new permanent threads in a mounting surface.

Spark Plug Thread Repair Kits for Gasket-Seat and Taper-Seat Ports These kits have short -, normal -, and long-reach inserts, an installation tool, and a tap.

Choose from our selection of thread repair, including helical inserts for metal, key-locking inserts for soft metal, and more. Same and Next Day Delivery.

Choose from our selection of spark plug thread repair inserts in a wide range of styles and sizes. Same and Next Day Delivery.

Choose from our selection of helical inserts, key-locking inserts, heat-set inserts, and more. Same and Next Day Delivery.

Helical inserts install into openings in a mounting surface and provide new female threads for installing male-threaded fasteners. They use a coiled wire design that engages the mounting surface and …