
WIDIA™ insert
| thread | tool joint | minimum | ||
| form | cresting | non-cresting | application | box size* |
2-3/8 API internal fl ush 2-7/8 API internal fl ush 3-1/2 API internal fl ush 4 API internal fl ush V-.038R 4-1/2 API internal fl ush NDC-4038R/L2 API #31
2" TPF ND-3038R/L 5-1/2 API internal fl ush
4-E/IR4API382 2-7/8 IF 4 TPI 6-5/8 API internal fl ush 4 API full hole API #23, API #26, API #31, API #35, API #38, API #40, API #44, API #46, API #50
| V-.038R | NDC-4038R/L3 | ND-3038R/L | API #56 | API #56 |
| 3" TPF | 4-E/IR4API383 | API #61 |
4 TPI API #70 API #77 V-.050 5-1/2 API full hole NDC-4050R/L2
2" TPF ND-4050R/L 6-5/8 API regular 5-1/2 API full hole
4-E/IRAPI502 4 TPI 6-5/8 API full hole V-.050 5-1/2 API regular NDC-4050R/L3
3" TPF ND-4050R/L 7-5/8 API regular 5-1/2 API regular
4-E/IR4API503 4 TPI 8-5/8 API regular 2-3/8 API regular V-.040 NDC-3040R/L3 ND-3040R/L 2-7/8 API regular
3" TPF NDC-4040R/L3 3-1/2 API regular
ND-4040R/L 3-1/2 API regular 5 TPI 4-E/IR5API403 4-1/2 API regular *Minimum box size that can be threaded with a standard TopThread insert due to minimum bore equipment.
width of fl at thread
thread root radius
height,
height, truncation crest root at thread
not
taper inch truncated Sm=Srs truncation crest crest radius corners pitch
truncated
threadform per ft. hn=hs fm=frs fcn=fcs fcn=fcs fm=frs rm=rrs r p
H .250
| V-.038R | 2 | .216005 | .121844 | .038000 | .056161 | .065 | — | .038 | .015 | |
| V-.038R | 3 | .215379 | .121381 | .038000 | .055998 | .065 | — | .038 | .015 | |
| V-.040 | 3 | .172303 | .117842 | .020000 | .034461 | .040 | — | .020 | .015 | .250 |
| V-.050 | 3 | .215379 | .147303 | .025000 | .043076 | .050 | — | .025 | .015 | |
| V-.050 | 2 | .216005 | .147804 | .025000 | .043201 | .050 | — | .025 | .015 |
.250 NOTE: All dimensions in inches.
V-.040 and V-.050 Product Thread Form Casing and Tubing Round Thread (Height Dimensions) p taper shown
Sm exaggerated 10 TPI 8 TPI
box
| thread element | p= .1000 | p= .1250 | ||||
| fcs | H | = .866p | .08660 | .10825 | ||
| m | Hs = hn | = .626p - .007 | .05560 | .07125 |
hn r
| H | fcs | Srs = Sm | = .120p + .002 | .01400 | .01700 |
| r 30º | Scs = Scn = .120p + .005 | .01700 | .02000 |
30º rrs hs fcn 60º fcn 90º Srs axis of thread pin