CLEVELAND Spiral Flute Tap: #4-48 UNF, 2B, 3 Flute, Semi-Bottoming Chamfer
The CLEVELAND Spiral Flute Tap (#4-48 UNF) is a 2B, semi-bottoming chamfer, black oxide cobalt tap with 3 flutes (MPN C89304). 3G Electric interprets demand and sources this genuine industrial tap across 14…
SKU 3G-OTH-218969
Need installation or engineering help?
Ask a question
Product Description
The CLEVELAND Spiral Flute Tap (#4-48 UNF) is a 2B, semi-bottoming chamfer, black oxide cobalt tap with 3 flutes (MPN C89304). 3G Electric interprets demand and sources this genuine industrial tap across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is the CLEVELAND Spiral Flute Tap #4-48 UNF used for?
This CLEVELAND spiral flute tap is designed for threading steel and stainless steel. Its semi-bottoming chamfer and black oxide cobalt construction make it suitable for through-hole and blind-hole applications in industrial manufacturing, automotive, and aerospace maintenance.
What are the specifications of the CLEVELAND Spiral Flute Tap #4-48 UNF?
The CLEVELAND C89304 tap has a #4-48 UNF thread size, 2B class of fit, 3 flutes, and a semi-bottoming chamfer. It is made from black oxide cobalt for heat resistance and durability in steel and stainless steel threading.
Where to buy CLEVELAND Spiral Flute Tap #4-48 UNF worldwide?
3G Electric supplies the CLEVELAND C89304 spiral flute tap worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time.
How to select the right spiral flute tap for steel?
For steel threading, choose a tap with black oxide cobalt coating like the CLEVELAND C89304 for heat resistance. Match thread size (e.g., #4-48 UNF), chamfer type (semi-bottoming for blind holes), and flute count (3 flutes for chip evacuation). Consult a tap selection guide for material-specific speeds.
Used in
Common applications for CLEVELANDCLEVELAND Products
3G Electric supplies CLEVELAND spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












