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Carbon Steel Tap Bottoming Type 5/16-24 (1pc)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Pouch
- Product Family:
- Electrical Supplies
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
Metallics 51624CTB – Frequently Asked Questions
1) What thread size does the Metallics 51624CTB tap cut?
The 51624CTB cuts a 5/16-24 thread, which is the fine thread pitch in that diameter (24 threads per inch) rather than the coarse 5/16-18. If the fastener or threaded rod you are matching is coarse, this tap will not cut the right thread for it.
2) What is a bottoming tap used for, and do I need a taper tap first?
A bottoming tap has almost no lead chamfer, so it cuts threads nearly to the bottom of a blind or closed hole. The 51624CTB is the bottoming type, so it is meant to follow a taper or plug tap, not start the hole on its own. For through-holes in sheet steel or strut you generally would not need it at all.
3) Is the Metallics 51624CTB tap carbon steel or high speed steel?
Carbon steel. That is fine for hand tapping and re-threading in mild steel and soft materials on an electrical install, but it will not hold an edge in hardened or stainless stock the way an HSS tap does, and it is not intended for powered high-speed use.
4) Will the 51624CTB tap clean up damaged 5/16-24 threads in an existing hole?
Yes, chasing damaged or paint-filled 5/16-24 fine threads is exactly where a bottoming tap earns its place, since it can reach threads near the bottom of a closed hole. Match the existing thread as fine (24 TPI) before running it; a coarse hole needs a different tap.
5) How many taps come in the Metallics 51624CTB pack?
One tap, supplied in a pouch. If you are stocking a van or a shop crib and need spares, order multiples of the single-piece pack.
6) Do I need a tap handle or wrench to use the Metallics 51624CTB?
The 51624CTB ships as the tap alone, one piece in a pouch. A T-handle or adjustable tap wrench sized for a 5/16 shank is a separate purchase, as is the matching tap drill for 5/16-24.
How fast can I get the Metallics 51624CTB 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 51624CTB come with a warranty?
Absolutely. The Metallics 51624CTB 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 51624CTB?
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 51624CTB 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.