1
STYLE
N - Top Notch
2
DESCRIPTION
A - 29° Acme
B - Blank (for special forms)
D - Threader (drilling)
F - Face Groover
G - Groover
J - UNJ Thread (controlled root radius)
R - Groover with full nose radius
T - 60° V Thread
U - Undercutting
V - Poly Vee
3
ADDITIONAL INFO
B - Buttress
C - Crest Turning
E - Forms crest radii only
F - Fine Pitch
K - Fine Pitch with positive top rake
P - Positive top rake
S - Stub
U - Utility
4
BODY SIZE
Basic Dimensions
Size | "H" | "T" | "A" |
---|---|---|---|
-2 | .219 | .150 | .344 |
-3 | .344 | .195 | .634 |
-3.5 | .344 | .255 | .634 |
-4 | .453 | .255 | .760 |
-4.5 | .453 | .312 | .760 |
-5 | .688 | .383 | 1.070 |
-6 | .453 | .383 | .760 |
-6.5 | .453 | .500 | .760 |
5
GROOVE WIDTH OR INDUSTRY IDENTIFICATION (if applicable)
Identifies width and radii in NG, NF, NR, and NU styles.
Identifies API designations in API, Round, and Buttress styles.
Identifies controlled root radii in NJ, NJF, NFP, and NJK styles.
6
HAND OF INSERT | |
---|---|
R - Right hand notch | ![]() |
L - Left hand notch |
7
DEFINITION OF INSERT (if applicable)
Depending on the insert, this number identifies the TPI (threads per inch) or TPF (taper per foot).
8
ADDITIONAL INFO
Int - Internal
Ext - External
M - Multiple Tooth
Bars and Holders stocked for these Inserts.
® Designates registered trademarks of other companies. All inserts are ground by CARBIDE GRINDING and are NOT a product of the referenced company. All of our carbide is 100% North American made.