String Book - Logan Oil Tools

0
0.625
45° 1/2 Max.
0.62R
D L
D LF
C
api nUmBereD
rotary ShoULDereD connectionS
L PC
See Note
0.625
D S Q C
See Note
Note: Extent of bevel on pin and box starting thread is optional with manufacturer.
Thread Thread Lg. Dia. Flat Sm. Dia Box Pin Box
Form, Taper, Pitch Dia. of Pin, on Pin of Pin Depth Length Counterbore
Conn. Inch Thds. In/Ft @ Gauge Pt. Reference DLF DS LBC LPC QC
No. * Radius Per In on Dia. C DL ± 1/64 +0 –3/8 +0 –3/8 +0 –1/8 +1/32 –0
23 0.038 4 2 2.355 2.563 2.437 2.063 3-5/8 3 2-5/8
26 ** 0.038 4 2 2.668 2.876 2.750 2.376 3-5/8 3 2-15/16
31 ** 0.038 4 2 3.183 3.391 3.266 2.808 4-1/8 3-1/2 3-29/64
35 0.038 4 2 3.531 3.739 3.625 3.114 4-3/8 3-3/4 3-13/16
38 ** 0.038 4 2 3.808 4.016 3.891 3.349 4-5/8 4 4-5/64
40 ** 0.038 4 2 4.072 4.280 4.156 3.630 5-1/8 4-1/2 4-11/32
44 0.038 4 2 4.417 4.625 4.499 8.875 5-1/8 4-1/2 4-11/16
46 ** 0.038 4 2 4.626 4.834 4.709 4.084 5-1/8 4-1/2 4-29/32
50 ** 0.038 4 2 5.0417 5.250 5.125 4.500 5-1/8 4-1/2 5-5/16
56 0.038 4 3 5.616 5.876 5.703 4.626 5-5/8 5 5-15/16
61 0.038 4 3 6.178 6.438 6.266 6.063 6-1/8 5-1/2 6-1/2
70 0.038 4 3 7.053 7.313 7.141 6.813 6-5/8 6 7-3/8
77 0.038 4 3 7.741 8.000 7.828 6.376 7-1/8 6-1/2 8-1/16
All dimensions are in inches.
* The connection number is the diameter of the connection at the gauge point rounded to units
and tenths of inches.
** See Table 12 below for interchangeability of numbered rotary shouldered connections with rotary
shouldered connections of Table 9.1.
taBLe 12
IntERChAngEABILIty oF nuMBERED RotARy ShouLDERED ConnECtIonS
WIth tABLE 9. RotARy ShouLDERED ConnECtIonS
45°
numbered Connection Equivalent Connection of table 9.
26 2-3/8 IF
31 2-7/8 IF
38 3-1/2 IF
40 4 FH
46 4 IF
50 4-1/2 IF
L BC