Thread Rite Screw Products Inc - Fasteners Conversion Chart Metric to Inches

To convert to millimeters:
Multiply Inches x 25.4

To convert to inches:
Multiply Millimeters x .039370

Inches

Fract.

Decimals

Fract.

Decimals

Fract.

Decimals

Fract.

Decimals

1/64

1/32

3/64

1/16

5/64

3/32

7/64

1/8

.00004
.00039
.00079
.001
.00118
.00157
.00197
.002
.00236
.00276
.003
.00315
.00354
.00394
.004
.005
.006
.007
.00787
.008
.009
.00984
.01
.01181
.01563
.01575
.01969
.02
.02362
.025
.02756
.0295
.03
.03125
.0315
.03543
.03937
.04
.04687
.04724
.05
.05512
.05906
.06
.06250
.06299
.06693
.07
.07087
.075
.07813
.07874
.08
.08661
.09
.09055
.09375
.09843
.1
.10236
.10937
.11811
.1250

.001
.01
.02
.025
.03
.04
.05
.051
.06
.07
.0762
.08
.09
.1
.1016
.1270
.1524
.1778
.2
.2032
.2286
.25
.254
.3
.3969
.4
.5
.508
.6
.635
.7
.75
.762
.7938
.8
.9
1
1.016
1.191
1.2
1.27
1.4
1.5
1.524
1.5875
1.6
1.7
1.778
1.8
1.905
1.9844
2
2.032
2.2
2.286
2.3
2.3812
2.5
2.54
2.6
2.7781
3
3.175

9/64

5/32

11/64

3/16

13/64

7/32

15/64

1/4

17/64

9/32

19/64

5/16

21/64

11/32

23/64

3/8
25/64

13/32

27/64

7/16

29/64
15/32

31/64

1/2

33/64
17/32

35/64

9/16

37/64

.13780
.14063
.150
.15625
.15748
.17188
.1750
.17717
.18750
.19685
.20
.20313
.21654
.21875
.2250
.23438
.23622
.250
.25591
.26563
.275
.27559
.28125
.29528
.29688
.30
.3125
.31496
.32813
.33465
.34375
.350
.35433
.35938
.37402
.375
.39063
.39370
.400
.40625
.41339
.42188
.43307
.43750
.450
.45276
.45313
.46875
.47244
.48438
.49213
.500
.51181
.51563
.53125
.53150
.54688
.550
.55118
.56250
.57087
.57813
.59055

3.5
3.5719
3.810
3.9688
4
4.3656
4.445
4.5
4.7625
5
5.08
5.1594
5.5
5.5562
5.715
5.9531
6
6.35
6.5
6.7469
6.985
7
7.1438
7.5
7.5406
7.62
7.9375
8
8.3344
8.5
8.7312
8.89
9
9.1281
9.5
9.525
9.9219
10
10.16
10.3188
10.5
10.7156
11
11.125
11.430
11.5
11.5094
11.9062
12
12.3031
12.5
12.7
13
13.0969
13.4938
13.5
13.8906
13.970
14
14.2875
14.5
14.6844
15

19/32

39/64

5/8

41/64

21/32

43/64
11/16

45/64

23/32

47/64

3/4
49/64

25/32

51/64

13/16

53/64
27/32

55/64

7/8

57/64

29/32
59/64

15/16

61/64

31/32

63/64
1

35/64

1 1/4

1 1/2

.59375
.600
.60938
.61024
.6250
.62992
.64063
.64961
.650
.65625
.66929
.67188
.68750
.68898
.700
.70313
.70866
.71875
.72835
.73438
.74803
.750
.76563
.76772
.78125
.78740
.79688
.800
.80709
.81250
.82677
.82813
.84375
.84646
.850
.85938
.86614
.875
.88583
.89063
.900
.90551
.90625
.92188
.92520
.93750
.94488
.950
.95313
.96457
.96875
.98425
.98438
1.000
1.06299
1.10240
1.18110
1.250
1.29921
1.3780
1.41732
1.500
1.53343

15.0812
15.24
15.4781
15.5
15.875
16
16.2719
16.5
16.51
16.6688
17
17.0656
17.4625
17.5
17.78
17.8594
18
18.2562
18.5
18.6531
19
19.050
19.4469
19.5
19.8438
20
20.2406
20.320
20.5
20.6375
21
21.0344
21.4312
21.5
21.590
21.8281
22
22.225
22.5
22.6219
22.860
23
23.0188
23.4156
23.5
23.8125
24
24.130
24.2094
24.5
24.6062
25
25.0031
25.4
27
28
30
31.75
33
35
36
38.1
39

1 3/4

2

2 1/4

2 1/2

2 3/4

3

3 1/2

4

4 1/2

5

6

8

10

1 Foot

15/16

16

20

2 Feet
3 Feet

4 Feet
5 Feet
6 Feet

8 Feet

1.57480
1.65354
1.750
1.77170
1.88976
1.96850
2.000
2.04724
2.16540
2.20472
2.250
2.36220
2.500
2.51968
2.750
2.83464
2.95280
3.000
3.14960
3.500
3.54330
3.9370
4.000
4.33070
4.500
4.72440
5.000
5.51180
5.90550
6.000
6.29920
7.08660
7.8740
8.000
8.66140
9.44880
9.84250
10.000
10.23620
11.02360
11.8110
12.000
12.59840
13.38580
13.77950
14.17320
14.96060
15.7480
16.000
17.71650
19.6850
20.000
23.6220
24.000
36.000
39.370
48.000
60.000
72.000
78.740
96.000

40
42
44.45
45
48
50
50.8
52
55
56
57.15
60
63.5
64
69.85
72
75
76.2
80
88/9
90
100
101.6
110
114.3
120
127
140
150
152.4
160
180
200
203.2
220
240
250
254
260
280
300
304.8
320
340
350
360
380
400
406.4
450
500
508
600
609.6
914.4
1 Meter
1.219.2
1.524
1.828.8
2 Meters
2.438.4