You may also like
Carbon Steel Tap Bottoming Type 7/16-14 (1pc)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Pouch
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
Metallics 71614CTB – Frequently Asked Questions
1) What thread does the Metallics 71614CTB tap cut, and what drill size do I need first?
It cuts a 7/16-14 thread, which is the UNC coarse pitch for that diameter. The standard tap drill for 7/16-14 UNC is a 3/8 inch bit, so drill the hole at 3/8 before running the tap. If you drill a clearance-size hole instead you will have nothing left for the threads to bite.
2) What is a bottoming tap used for versus a taper or plug tap?
A bottoming tap has almost no lead chamfer, so it threads nearly to the floor of a blind hole. That is what the 71614CTB is for: finishing threads at the bottom of a hole that a taper or plug tap could not reach. Taper and plug taps have longer chamfers that start the thread more easily, so the usual sequence is to start the hole with one of those and finish with the bottoming tap. It is not the tool to start a fresh hole with by itself.
3) Can I use this tap to clean up damaged 7/16-14 threads in a strut channel or threaded insert?
Yes, chasing existing 7/16-14 threads is a normal use for it. Because the bottoming style has little lead chamfer, line it up square with the hole before you start turning, or it will cross-thread. For threads damaged right at the surface of an open hole, a taper tap starts easier.
4) Is the Metallics 71614CTB carbon steel or high speed steel, and does that matter for what I tap?
It is carbon steel. Carbon steel taps are intended for hand tapping of softer materials and for thread chasing, and they will not hold an edge in hardened material or under powered tapping the way high speed steel does. Use cutting oil and turn it by hand with a tap wrench, backing off periodically to clear chips.
5) I need to hang threaded rod off a tapped hole for 7/16-14. Is this the right tap?
Yes, 7/16-14 is the thread this tap cuts, so it matches 7/16-14 rod and bolts. For a through hole, a taper or plug tap is easier to start; reach for the 71614CTB bottoming style when the hole is blind and you need usable thread close to the bottom.
6) How many taps come in the Metallics 71614CTB, and how is it packaged?
One tap per pack, supplied in a pouch. If you are stocking a van or an MRO cage and want the full 7/16-14 progression, you would order the taper and plug styles separately; this is the bottoming style only.
How fast can I get the Metallics 71614CTB delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
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 71614CTB come with a warranty?
Absolutely. The Metallics 71614CTB 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 71614CTB?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics 71614CTB from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.