|
TopThread ™
Insert Overview
|
style |
|||||||||||||||||
|
thread profile |
standard |
|
NT-CK |
Partial Profile 60 °— coarse pitch |
– – N |
Coarse pitch 60 ° thread forms, such as ISO and UN, where non-cresting inserts are desired to cut a variety of pitches. |
F15 |
NTF |
NTK |
Partial Profile 60 °— fine pitch |
– – N |
Fine pitch 60 ° thread forms, such as ISO and UN, where non-cresting inserts are desired to cut a variety of pitches— able to thread close to shoulders. |
F16 |
NTC |
American UN |
ANSI B1.1:74 |
2A / 2B |
Y |
Widely used inch-based 60 ° V-form for all industries. |
F17 |
NJK |
UNJ— fine pitch |
SAEA588790 3A / 3B N |
Controlled root radius on external threads for military and aerospace industries— able to thread close to shoulders. |
F18 |
NDC-V |
NPT |
ANSI / ACME B1.201: 1983 |
Standard NPT |
Y |
National Pipe Thread standard forms for pipe fittings. |
F18 |
||
NDC-V-M |
NPT— multi-tooth |
ANSI / ACME B1.201: 1983 |
Standard NPT |
Y |
High-productivity multi-tooth threading inserts for NPT threads. |
F19 |
||
NWC-E |
Whitworth, BSW, BSP |
BS 84:1956, ISO 228 / 1: 1982, DIN 259 |
Medium Class A |
Y |
Widely used 55 ° form for gas and water connections. |
F19 |
||
NDC-RD |
API Round |
API STD. 5B: 1979 |
Standard API RD |
Y |
60 ° V-form with large radius for casing, tubing, and line pipe in the oil and gas industry, including 8 and 10 round forms. |
F20 |
||
F8 |
NA
NAS
NTB-B
|
Acme
Stub Acme
American Buttress— 45 ° clearance flank leading( Pull)
|
ANSI B1.5:1988
ANSI B1.8:1988
ANSI B1.9:1973
|
3G
2G
Class 2
|
N
N
N
|
29 ° truncated thread form for motion applications in a wide variety of industries.
Shallow depth 29 ° truncated thread form for motion applications in a wide variety of industries.
Sawtooth form for axial load bearing applications in a variety of industries— use the“ B” style when the 45 ° clearance flank is the leading flank.
|
F21
F22
F22
widia. com
|
KL-TECH s. r. o. | www. klte. cz |