CLEVELAND Spiral Flute Tap: 5/16"-24 UNF, 2B, 3 Flute, Semi-Bottoming Chamfer
The CLEVELAND Spiral Flute Tap (5/16"-24 UNF) is a 2B, semi-bottoming chamfer, black oxide cobalt tap with 3 flutes (MPN C89317). Designed for threading steel and stainless steel, it is part of 3G Electric's…
SKU 3G-OTH-218004
Need installation or engineering help?
Ask a question
Product Description
The CLEVELAND Spiral Flute Tap (5/16"-24 UNF) is a 2B, semi-bottoming chamfer, black oxide cobalt tap with 3 flutes (MPN C89317). Designed for threading steel and stainless steel, it is part of 3G Electric's industrial supply across 14 departments, with specialist depth in combustion, pumps and controls.
Frequently Asked Questions
What is a CLEVELAND spiral flute tap used for?
A CLEVELAND spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This 5/16"-24 UNF, 2B, semi-bottoming chamfer tap is ideal for production tapping where chip evacuation is critical.
What are the specifications of the CLEVELAND C89317 tap?
The CLEVELAND C89317 is a 5/16"-24 UNF spiral flute tap with a 2B thread class, 3 flutes, and a semi-bottoming chamfer. It is made from black oxide cobalt for enhanced wear resistance and heat tolerance, designed for threading steel and stainless steel in blind-hole applications.
Where to buy CLEVELAND taps in worldwide?
3G Electric supplies CLEVELAND taps worldwide, including the C89317 spiral flute tap. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source genuine parts across 14 departments, ensuring you get the right tap for your threading needs.
How to select the right spiral flute tap for steel?
Select a spiral flute tap like the CLEVELAND C89317 for blind holes in steel. Match the thread size (5/16"-24 UNF), class (2B), and chamfer type (semi-bottoming) to your application. Use black oxide cobalt for tougher materials. Always verify the tap's flute count and coating for chip evacuation and tool life.
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.












