Ring & Plug Thread Gages  
 
Call 616 954 6581 for Thread Gages
About Ring & Plug Thread GagesUsed - Surplus Ring & Plug Thread GagesRing & Plug Thread Gage Technical InformationRing & Plug Thread Gage CatalogsContact Ring & Plug Thread GagesBookmark

 

 
 
 
 
 
API Screw Thread Gages

BTC Screw Threads for American Petroleum Institute-API

Go Directly to the Gage Price Sheets

Working Ring or Working Plug
Size (in Inches)
T.P.I. (Threads per Inch)
T.P.F. (Taper per Foot)
4-1/2
5
3/4
5
5
3/4
5-1/2
5
3/4
6-5/8
5
3/4
7
5
3/4
7-5/8
5
3/4
8-5/8
5
3/4
9-5/8
5
3/4
10-3/4
5
3/4
11-3/4
5
3/4
13-3/8
5
3/4
16
5
1
18-5/8
5
1
20
5
1

 

Return to the Main API Index Home Page

Original Posting: 08/24/2011
Last Revision: 6/11/2012
Error corrections in or comments about the above data can be sent to: gageguy@gagecrib.com

About UsUsed SurplusTech InfoCatalogsContact UsBookmarkSitemap
 

 

Top

Gage Crib Worldwide, Inc.
6701 Old 28th St SE, Suite B
Grand Rapids, MI 49546-6937
Phone: 001-616-954-6581 • Fax: 001-616-954-6583
Email: gageguy@gagecrib.com

Copyright © 2002-2012 Ring & Plug Thread Gages. All rights reserved.