Engine Cold Crack Repair, Drill size (inches): #25 and 5/16

Need to thread castings for a perfect seal with your Irontite B-1 Threaded Plugs? The [407-5303-27] HSS Tapered Tap delivers the exact threads required for a tight, reliable fit. Get the job done right the first time!

Need reliable plugs for your Irontite cold crack repairs? This box contains 50 high-quality B-1 automotive ductile iron plugs, essential for the Irontite system’s effective crack closure in metal castings.

Repair cracks in cast metal components easily and effectively with TPC Tapered Threadless Pins. Ideal for cold casting repair in tight spaces, these pins provide a strong, durable, and stress-free solution without the risks of welding. Also used to prevent spun bearings in high-performance applications.