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Carbon Steel Tap Taper Type 7/16-14 (1pc)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Pouch
- Product Family:
- Electrical Supplies
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
Metallics 71614CTT – Frequently Asked Questions
1) What thread size does the Metallics 71614CTT tap cut?
It cuts a 7/16-14 thread, meaning a 7/16 inch nominal diameter at 14 threads per inch, which is the UNC coarse pitch for that diameter. Use it where you need to thread a hole for a 7/16-14 bolt or rod, such as tapping steel channel or a strut member for threaded rod hanger support.
2) What size hole do I drill before using a 7/16-14 tap?
The standard tap drill for a 7/16-14 UNC thread is 25/64 inch, which gives roughly 75 percent thread engagement in steel. Drill that first, then run the taper tap in. Going larger leaves a weak thread; going smaller risks snapping the tap in the hole.
3) What is a taper tap and when should I use one instead of a plug or bottoming tap?
A taper tap has a long lead chamfer over the first several threads, so it self-aligns and cuts gradually as it enters the hole. That makes it the one you start with, and the right choice for through holes where the tap can run all the way out the back. For a blind hole you start with the taper and finish with a bottoming tap to carry threads near the bottom. The Metallics 71614CTT is the taper type in 7/16-14.
4) Is the Metallics 71614CTT tap carbon steel or high speed steel?
Carbon steel. It is intended for hand tapping of mild steel, strut, and similar electrical fabrication work, driven with a T-handle or tap wrench at low speed with cutting oil. Carbon steel taps do not take the heat of powered tapping the way high speed steel does, so keep it on hand tools.
5) Can I use this tap to thread strut for 7/16 inch threaded rod?
Yes, provided the rod is 7/16-14 coarse thread, which is the standard UNC pitch at that diameter. Drill 25/64 inch, tap with the taper, and the hole will accept 7/16-14 rod or bolts. It will not produce a fine thread; 7/16-20 fasteners need a different tap.
6) How many taps come in a pack of the Metallics 71614CTT?
One tap per pack, supplied in a pouch. If you are tapping a run of holes on a job, order multiples; carbon steel taps are consumable and a broken one on site stops the work.
7) What is the Metallics part number for the 7/16-14 taper tap?
71614CTT is the manufacturer part number, and it decodes to the thread size and type: 7/16-14, carbon steel, taper tap. Quote that number when matching an existing tap in your kit.
How fast can I get the Metallics 71614CTT delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics 71614CTT come with a warranty?
Absolutely. The Metallics 71614CTT is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics 71614CTT?
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