Description
- Chrome Alloy UNF Hand Tap Set.
- Used as thread chasers to clean an existing thread.
- They can also be used to create a new female thread in non-ferrous metals and plastics.
- Chrome alloy taps are not suitable for creating precision, safety or critical threads.
- Unified National Fine thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada and the UK.
- The thread profile of UNF is the same as for metric threads and is described in the JIS B0206 standard.
- The thread is described by its major diameter and the number of threads per inch of length (TPI).
- When used on external threads this series has greater tensile stress area than coarse threads of the same size.
- Fine series threads will resist stripping out better than coarse threads in areas where the external and mating internal threads are subjected to loads equal to or greater than the capacity of the screw or bolt.
- Fine threads are also used where the length of engagement is limited 1-1/4 or where wall thickness demands a fine pitch.
- Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.
- Taper Taps have a lead of eight threads and are used as a starting tap in difficult or high precision holes.
- Intermediate Taps have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole.
- Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
Options
- 4234-1/2TS
- 4234-1/4TS
- 4234-5/16TS
Options
- 4234-1/2TS
- 4234-5/16TS
- 4234-1/4TS
Additional Information
Optional Accessories
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
hidden
Shop Spring Sale
You may also like
Recently viewed
Let customers speak for us
Firstly the delivery was fast and the transaction simple. Thanks. The Bosch is well built, has the power to tackle some thick growth and you can get a second battery 8amp by redemption free. Happy I selected the bundle and the dealership.
Great company, great support, great product.
As with all of the rosewood marbles tools, great quality. Now I just need to stop the students from damaging them.
No problem with the whole transaction
Good price easy transaction and good delivery
Bought as a present. Easy transaction, good delivery.
So far 5 stars. Easy to assemble and the mobility kit is great must have! Easy to adjust and use but time will tell.
Thank you for a quick & easy transaction
Wonderful fast shipping and delivery. Awesome business.
Took was exactly what I needed to complete my project. Great quality. Left a beautiful smooth hole.
Exactly what’s required to convert my lathe headstock to fit an old but reliable chuck.
Very good 👍
Item in excellent condition, good price, speedy delivery.
Arrived well packaged and works great, good doing business with yourselves
Due to a lack of support for Jet bandsaws in my country, finding a replacement tire for mt 18” saw was difficult!! I nearly got scammed by some mob in Europe until I found Beyond Tools. This tire is perfect and won’t be supplied by the manufacturer out of America so for me this has been the best solution
