API (American Petroleum Institute) GAGES
Thread Check, Inc. offers API Thread Gages to Spec Q1,
Spec 5B, Spec 7, Spec 11B as well as many other special API
gages. Our engineering staff have served on various API gaging
subcommitees and would be pleased to assist you with all your
custom requirements. Contact 800 767 7633 for assistance.
API Gages are available in Chrome for increased wear life and
resistance to corrosion from high humidity and salt spray.
Nominal Size
From
To
TPI
TPF
Casing - Round
4-1/2
20
8
3/4
Line Pipe
1/8
20
8 - 27
3/4
1.050
3-1/2
10
3/4
Tubing-Non Upset
4
4-1/2
8
3/4
1.050
1.900
10
3/4
Tubing-External Upset
2-3/8
4-1/2
8
3/4
Tubing-Integral Joint
2-3/8
4-1/2
8
3/4
Extreme Line Casing
5
7-5/8
6
1-1/2
SPEC 5B (PLUG RING)
8-5/8
10-3/4
5
1-1/4
NC 10
NC 16
6
1-1/2
NC Connections
NC 23
NC 50
4
2
NC 56
NC 77
4
3
Regular
1
8-5/8
4-6
1-1/2,2,3
Full Hole
3-1/2
6-5/8
4-5
2,3
Internal Flush
2-3/8
5-1/2
4
2
H-90
2-3/8
8-5/8
3-1/2
1-1/4,2,3
Slim Hole
2-3/8
--
4
2
Extra Hole
2-7/8
5
4
2
SPEC 7 (PLUG RING)
Wide Open
2-3/8
--
4
2
AOH
2-3/8
4-1/2
4
1-1/2
PAC
2-3/8
3-1/2
4
1-1/2
XHole
2-7/8
5
4
2
Sucker Rods B1 to B6
1/2
1-1/8
10
Sucker Rods P1 to P6
1/2
1-1/8
10
Mining: BECO, D1-22, D1-42
American National Special Threads
SPEC 11B
Tapered Thread Gages - AWWA
15
Thread Check,Tel:631-231-1515 Fax:631-231-1625 Toll-Free:Tel:800-767-7633 Fax:800-767-2034 www.threadcheck.com Email: info@threadcheck.com