Walter 5/16-18 NC HSS Plug Tap for Steel and Stainless

Reliable Taps for the Fabrication Shop

When you are in the middle of a fabrication job or fixing a stripped bolt hole on a piece of equipment, you need a tap that bites and cuts without snapping. The Walter 5/16-18 NC Plug Tap is the shop standard for getting the job done right. Made from High-Speed Steel (HSS), this isn't one of those cheap hardware store taps that dulls after one hole. It is designed to cut through mild steel, aluminum, and even tough stainless steel without putting up a fight.

The "Plug" style design features a moderate taper at the tip (about 3-5 threads), making it easy to start in the hole while still cutting full threads relatively quickly. It is the perfect all-rounder for drilling out and tapping through holes on brackets, plates, and machinery. Because the threads are ground precisely, you get a clean cut that accepts bolts smoothly every time, saving you the headache of cross-threading or tight fits during assembly.

Whether you are tapping by hand with a T-handle or running it in a drill press or mill, this Walter tap stands up to the pressure. It is an essential addition to any welder's or mechanic's tool chest, ensuring you are ready to create or repair 5/16-18 coarse threads whenever the project demands it. Don't let a stripped thread slow down your day; keep a quality HSS tap on hand to keep your workflow moving.