APPROVED VENDOR Pipe and Conduit Thread Tap: 1 1/4"-11.5 NPT, 1B, 5 Flute
SKU 3G-OTH-266019
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Frequently Asked Questions
What is the APPROVED VENDOR 5TWX4 pipe tap used for?
The APPROVED VENDOR 5TWX4 is a 1 1/4"-11.5 NPT general purpose pipe tap used to cut internal threads in pipe and conduit fittings. It is commonly applied in plumbing, HVAC, and industrial piping systems where a semi-bottoming chamfer allows threading close to the bottom of a blind hole.
What are the specifications of the APPROVED VENDOR 5TWX4 pipe tap?
The APPROVED VENDOR 5TWX4 is a 1 1/4"-11.5 NPT pipe tap with a 1B thread class, 5 flutes, and a semi-bottoming chamfer. It is designed for general purpose threading of pipe and conduit in steel, stainless steel, and other ferrous materials.
Where to buy the APPROVED VENDOR 5TWX4 pipe tap worldwide?
3G Electric supplies the APPROVED VENDOR 5TWX4 pipe tap to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this and other threading tools.
How to select the correct pipe tap for NPT threads?
Select a pipe tap with the same NPT size and thread pitch as the fitting, such as the 1 1/4"-11.5 NPT APPROVED VENDOR 5TWX4. For blind holes, choose a semi-bottoming chamfer; for through holes, a taper chamfer works. Match the flute count to material type—5 flutes suit general purpose steel threading.
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3G Electric supplies APPROVED VENDOR general purpose pipe taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












