E Automotive Ductile Iron Plugs, Box of 25

The E Automotive Ductile Iron Plugs are essential components of Irontite’s cold repair system for fixing cracks in castings. Sold in boxes of 25, these E-type plugs have a 1-inch thread length (A) and a 0.590-inch small end diameter (B). Proper installation requires drilling (407-5105-90), taper reaming (407-5205-90), and tapping (407-5305-90) with the recommended HSS tools.

The 401-2105-90 E Automotive Ductile Iron Plugs are high-quality components designed for effective crack repair in castings as part of Irontite’s proven cold repair process. These ductile iron plugs are sold in convenient boxes containing 25 individual plugs, making them ideal for both single repairs and larger projects.

Key Specifications:

• Plug Type: E
• Thread Length “A”: 1 inch
• Diameter Small End “B”: 0.590 inches

As part of Irontite’s crack repair system, these tapered plugs work by adding and moving metal to close cracks in castings. Proper installation is crucial for a strong and lasting repair. The recommended tooling and procedure for installing these E Automotive Ductile Iron Plugs are as follows:

1. Drilling: Create the initial hole using a 9/16 inch High-Speed Steel (HSS) Drill (407-5105-90).
2. Reaming: Taper ream the drilled hole with an HSS Tapered Reamer E, E-1, E-1 Special (407-5205-90). This step is vital for ensuring a precise fit and extending the life of the tap, especially in thicker materials.
3. Tapping: Create the internal threads using an HSS Tapered Tap E, E-1, E-1 Special (407-5305-90). Using a good tapping fluid, such as Irontite’s TAP-O, is highly recommended for smooth and effective thread cutting.

Once the E Automotive Ductile Iron Plugs are installed and properly torqued, the excess material should be cut off. The tops of the installed plugs are then typically peened to help lock the threads at the surface of the casting, further enhancing the repair’s integrity. For applications requiring an extra level of sealing, Irontite’s Ceramic Seal can be applied to the plug threads before installation to fill any potential porosity in the threaded hole, ensuring a leak-proof seal.

These E Automotive Ductile Iron Plugs are a reliable choice for effective and durable crack repair in a variety of automotive and other casting applications.