Collection: Taps & Tap Wrenches

Shop taps for cutting internal threads in steel, stainless and other metals. Filter by tap type, thread series and tap size to find UNC, UNF, metric and NPT taps plus the tap wrench to turn them. Need help choosing? Call 888-714-1410 or email sales.

Why buy from Pittsburgh Spray Equipment

• Help picking the right one: tell us the material, the tool and the result you need and we will match the product; call 888-714-1410, no phone tree
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Taper, plug and bottoming taps

A taper tap has the longest chamfer and starts threads most easily. A plug tap is the general-purpose tap for through holes. A bottoming tap has almost no chamfer and cuts full threads to the bottom of a blind hole after the plug tap has started it.

FAQ

What is the difference between UNC and UNF taps?
UNC (coarse) threads are the common general-purpose thread and are faster to tap and more tolerant of soft material. UNF (fine) threads have more threads per inch, give finer adjustment and hold better in thin walls and harder material.

How do I tap a blind hole?
Drill to the correct tap drill size and depth, start the thread with a taper or plug tap, then finish with a bottoming tap so the threads run to the bottom. Back the tap out often to clear chips and use tapping fluid.

Are pipe taps different from regular taps?
Yes. NPT pipe taps are tapered (3/4 inch per foot) so the threads seal as the fitting tightens. They are sized by nominal pipe size, not the actual hole diameter.