|
Diameter
Inches |
Decimal Equivalent
|
Mild Steel
|
Soft Aluminum
|
Stainless Steel
and Tool Steel |
|
1/4"
|
0.2500
|
1530
|
11920
|
765
|
|
5/16"
|
0.3125
|
1220
|
9535
|
610
|
|
3/8"
|
0.3750
|
1020
|
7945
|
510
|
|
7/16"
|
0.4375
|
875
|
6810
|
440
|
|
1/2"
|
0.5000
|
765
|
5960
|
380
|
|
|
||||
|
9/16"
|
0.5625
|
680
|
5300
|
340
|
|
5/8"
|
0.6250
|
610
|
4770
|
300
|
|
11/16"
|
0.6875
|
560
|
4335
|
280
|
|
3/4"
|
0.7500
|
510
|
3975
|
255
|
|
13/16"
|
0.8125
|
470
|
3670
|
235
|
|
|
||||
|
7/8"
|
0.8750
|
440
|
3405
|
220
|
|
15/16"
|
0.9375
|
410
|
3180
|
205
|
|
1"
|
1.0000
|
385
|
2980
|
190
|
|
1-1/16"
|
1.0625
|
360
|
2805
|
180
|
|
1-1/8"
|
1.1250
|
340
|
2650
|
170
|
|
|
||||
|
1-1/4"
|
1.2500
|
305
|
2385
|
155
|
|
1-5/16"
|
1.3125
|
290
|
2270
|
145
|
|
1-3/8"
|
1.3750
|
280
|
2170
|
140
|
|
1-7/16"
|
1.4375
|
270
|
2075
|
135
|
|
1-1/2"
|
1.5000
|
255
|
1985
|
130
|
|
|
||||
|
1-9/16"
|
1.5625
|
245
|
1910
|
120
|
|
1-5/8"
|
1.6250
|
235
|
1835
|
120
|
|
1-11/16"
|
1.6875
|
225
|
1765
|
110
|
|
1-3/4"
|
1.7500
|
220
|
1700
|
110
|
|
1-13/16"
|
1.8125
|
210
|
1645
|
105
|
|
|
||||
|
1-7/8"
|
1.8750
|
205
|
1590
|
100
|
|
1-15/16"
|
1.9375
|
200
|
1540
|
100
|
|
2"
|
2.0000
|
190
|
1490
|
95
|
|
2-1/16"
|
2.0625
|
185
|
1445
|
95
|
|
2-1/8"
|
2.1250
|
180
|
1400
|
90
|
|
|
||||
|
2-1/4"
|
2.2500
|
170
|
1325
|
85
|
|
2-5/16"
|
2.3125
|
165
|
1490
|
85
|
|
2-3/8"
|
2.3750
|
160
|
1255
|
80
|
|
2-7/16"
|
2.4375
|
160
|
1220
|
80
|
|
2-1/2"
|
2.5000
|
150
|
1190
|
75
|
|
|
||||
|
2-9/16"
|
2.5625
|
150
|
1160
|
75
|
|
2-5/8"
|
2.6250
|
146
|
1135
|
70
|
|
2-11/16"
|
2.6875
|
140
|
1110
|
70
|
|
2-3/4"
|
2.7500
|
140
|
1080
|
70
|
|
2-13/16"
|
2.8125
|
135
|
1060
|
65
|
|
|
||||
|
2-7/8"
|
2.8750
|
130
|
1035
|
65
|
|
2-15/16"
|
2.9375
|
130
|
1015
|
65
|
|
3"
|
3.0000
|
130
|
990
|
65
|