■ for Whitworth Threads ■■ for Sewing Machine Threads for Sewing Machine Threads

Unit : mmUnit : mm Unit : mmUnit : mm Minor diameter of internal threads (Dめねじ内径(めねじ内径(DD)) ) Bored hole size Minor diameter of internal threads (D ) Bored hole size

Size 11 1 1

ねじ下穴径ねじ下穴径 Size

Max.Min.( ref.)Max.Min.( ref.)
※※※1/16W 601.2301.1071.20 2.53 2.531/SM 801.2811.2111.26

16

  • 3/32 W 48 1.914 1.785 1.88

※※ 3.66 3.66 5/64 SM 64 1.593 1.513 1.57

  • 1/8 W 40 2.591 2.456 2.56

5/32 W 32 3.214 3.071 3.18 5.13 5.13 3/32 SM 56 1.936 1.841 1.91

  • 3/16 W 24 3.745 3.563 3.70 6.59 6.59 3/32 SM 100 2.156 2.081 2.14
  • 7/32 W 24 4.540 4.358 4.49 8.02 8.02 1/ SM 40 2.551 2.421 2.52

8

1/4 W 20 5.204 4.914 5.13 9.4 9.4

1/ 8 SM 44 2.605 2.485 2.58

5/16 W 18 6.670 6.340 6.59

10.7 10.7 9/ SM 40 2.948 2.818 2.92

3/8W 168.1137.7338.0264
7/16W 149.5089.04812.3 12.3 9.411/SM 323.5843.4243.54

64

1/2 W 12 10.830 10.310 13.7 13.7 10.7

11/64 SM 40 3.742 3.612 3.71

9/16 W 12 12.418 11.898 16.6 16.6 12.3

3/16 SM 24 3.658 3.498 3.62

5/8 W 11 13.817 13.257 19.5 19.5 13.7

■3 for Sewing Machine Threads /SM 283.844 3.684 3.80

3/4W 1016.77816.17816.616
7/8W 919.69119.03122.3 22.3 19.5

Unit : mm 3/16 SM 32 3.980 3.820 3.94 Unit : mm

  • D1: Minor diameter of JIS Class 2 internal thread.
  • D1: Minor diameter of JIS Class 2 internal thread.1 W 822.514 21.814 22.3

めねじ内径(D ) 3/16 SM 40 4.138 4.008 4.11

  • Whitworth Threads have been eliminated from JIS.
  • Whitworth Threads have been eliminated from JIS.1

1 1/8 W 7 25.229 24.469 ねじ下穴径25.0

  • ※※Marked sizes are in accordance with BSW.Marked sizes are in accordance with BSW. 7/32 SM 32 4.774 4.614 4.73

1 1/4 W 7 28.404 27.644 28.2

  • 2.53 15/ SM 28 5.055 4.875 5.01
1 3/8W 630.92330.12330.764
※1 1/2W 634.09833.2983.66 33.91/SM 245.2665.0865.22

4

1 5/8 W 5 36.409 35.529 5.13 36.2 1/ SM 28 5.452 5.272 5.41

4

1 3/4 W 539.58438.7046.59 39.4
1W 442.22741.23742.01/ 4SM 405.7265.5965.69
7/81/28.02
2 W 4 1/245.40244.41245.29/32SM 286.2566.0666.21
2W 451.06849.9589.4 50.8
1/45/16SM 246.8646.6746.82
2 1/2W 457.41856.30810.7 57.1
11/32SM 287.8437.6537.80
2 3/4W 3 1/262.81661.63612.3 62.5
3 W 3 1/269.16667.98613.7 68.9
3 1/4W 3 1/474.90273.70274.6

16.6

3 1/2W 3 1/481.25280.05281.0
3 3/4W 386.90885.66819.5 86.6
4 W 393.25892.01822.3 92.9
  • D1: Minor diameter of JIS Class 2 internal thread.
  • Whitworth Threads have been eliminated from JIS.
  • ※Marked sizes are in accordance with BSW.

■ for Pipe Threads

p

Unit : mm Unit : mmUnit : mm Unit : mm

Minor Diameter of JIS internal thread (D ) Bored hole size Minor diameter of internal threads (Dめねじ内径(D) ) Bored hole sizeBored hole size めねじ内径(D )

Size 1 Size 1 1 1

( ref.) ねじ下穴径( ref.) ねじ下穴径

Max. Min. ( ref.)

PS1/16 - 286.6326.4906.50 6.50Rp1/8 - 288.6378.4958.50 6.77 6.506.77
PS1/8 - 288.6378.4958.50Rp1/4 - 1911.54911.34111.40
1/48.508.78 8.508.78
PS- 19 11.54911.34111.30Rp3/8 - 1915.05414.84614.90
PS3/8 - 1915.05414.84614.80 11.30Rp1/2 - 1418.77318.48918.5 11.78 11.3011.78
PS1/2 - 1418.77318.48918.5Rp3/4 - 1424.25923.97524.0
14.9015.28 14.9015.28
PS5/8 - 1420.72920.44520.4Rp1 - 1130.47230.11030.2
PS3/4 - 1424.25923.97524.0 18.519.0 18.519.0
  • For the product symbol of “AUSP Rp”, see the list above.
PS7/8 - 1428.01927.73527.7 24.021.0 24.021.0
PS1 - 1130.47230.11030.1
30.224.5 30.224.5
PS 1 1/8 - 1135.12034.75834.7
PS 1 1/4 - 1139.13338.77138.8 38.828.3 38.828.3
PS 1 1/2 - 1145.02644.66444.7 44.730.8 44.730.8
PS 1 3/4 - 1150.96950.60750.6
56.535.4 56.535.4
PS2 - 1156.83756.47556.5
PS 2 1/4 - 1162.93362.57162.539.439.4
Technical Inf PS 2 1/2 - 1172.44272.01072.045.3

45.3

PS 3 - 11 85.142 84.710 84.7

51.3 51.3

PS 3 1/2 - 1197.58897.15697.2
PS4 - 11110.288109.856109.957.157.1
  • For taps with the product symbol of “PS” or “Rp”, see the list above.