HEIDENHAIN SW 68894x-03 - Manual (Page 611)

HEIDENHAIN CNC PILOT 640 611
9.1 Th
re
ad
pitc
h Q = 11 Whitworth pipe thread
Q = 13 UNC US coarse thread
Thread
designation Diameter
(in mm)
Thread pitch
Thread
designation Diameter
(in mm)
Thread pitch
1/8'' 9.728 0.907 2'' 59.614 2.309
1/4'' 13.157 1.337 2 1/4'' 65.71 2.309
3/8'' 16.662 1.337 2 1/2'' 75.184 2.309
1/2'' 20.995 1.814 2 3/4'' 81.534 2.309
5/8'' 22.911 1.814 3'' 87.884 2.309
3/4'' 26.441 1.814 3 1/4'' 93.98 2.309
7/8'' 30.201 1.814 3 1/2'' 100.33 2.309
1'' 33.249 2.309 3 3/4'' 106.68 2.309
1 1/8'' 37.897 2.309 4'' 113.03 2.309
1 1/4'' 41.91 2.309 4 1/2'' 125.73 2.309
1 3/8'' 44.323 2.309 5'' 138.43 2.309
1 1/2'' 47.803 2.309 5 1/2'' 151.13 2.309
1 3/4'' 53.746 1.814 6'' 163.83 2.309
Thread
designation Diameter
(in mm)
Thread pitch
Thread
designation Diameter
(in mm)
Thread pitch
0.073'' 1.8542 0.396875 7/8'' 22.225 2.822222222
0.086'' 2.1844 0.453571428 1'' 25.4 3.175
0.099'' 2.5146 0.529166666 1 1/8'' 28.575 3.628571429
0.112'' 2.8448 0.635 1 1/4'' 31.75 3.628571429
0.125'' 3.175 0.635 1 3/8'' 34.925 4.233333333
0.138'' 3.5052 0.79375 1 1/2'' 38.1 4.233333333
0.164'' 4.1656 0.79375 1 3/4'' 44.45 5.08
0.19'' 4.826 1.058333333 2'' 50.8 5.644444444
0.216'' 5.4864 1.058333333 2 1/4'' 57.15 5.644444444
1/4'' 6.35 1.27 2 1/2'' 63.5 6.35
5/16'' 7.9375 1.411111111 2 3/4'' 69.85 6.35
3/8'' 9.525 1.5875 3'' 76.2 6.35
7/16'' 11.1125 1.814285714 3 1/4'' 82.55 6.35
1/2'' 12.7 1.953846154 3 1/2'' 88.9 6.35
9/16'' 14.2875 2.116666667 3 3/4'' 95.25 6.35
5/8'' 15.875 2.309090909 4'' 101.6 6.35
3/4'' 19.05 2.54