TOLERANCES
Permissible Variation in Size of Cold Finished Round Bars |
Specified Size, in (mm) |
Permissible Variation from Specified Size in (mm) |
|
Over |
Under |
1/16 to 5/16 (1.50 to 8.00) excl. |
0.001 (0.03) |
0.001 (0.03) |
5/16 to 1/2 (8.00 to 13.00) excl. |
0.0015 (0.04) |
0.0015 (0.04) |
1/2 to 1 (13.00 to 25.00) excl. |
0.002 (0.05) |
0.002 (0.05) |
1 to 1 1/2 (25.00 to 38.00) excl. |
0.0025 (0.06) |
0.0025 (0.06) |
1 1/2 to 4 (38.00 to 100.00) excl. |
0.003 (0.08) |
0.003(0.08) |
|
|
Permissible Variation in Size of Cold Finished Hexagonal and Square Bars |
Specified Size, in (mm) |
Permissible Variation from Specified Size in (mm) |
|
Over |
Under |
1/8 to 5/16 (2.50 to 8.00) excl. |
0 |
|
0.002 (0.05) |
|
5/16 to 1/2 (8.00 to 13.00) excl. |
0 |
|
0.003 (0.08) |
|
1/2 to 1 (13.00 to 25.00) incl. |
0 |
|
0.004 (0.10) |
|
Over to 2 (25.00 to 50.00) incl. |
0 |
|
0.006 (0.15) |
|
Over 2 to 3 (50.00 to 75.00) incl. |
0 |
|
0.008 (0.20) |
|
Over 3 (75.00 mm) |
0 |
|
0.010 (0.25) |
|
|
|
DIN TOLERANCE |
Size range |
h7 |
h8 |
h9 |
h10 |
h11 |
3.00-6.00 mm |
0.00 / -0.012 |
0.00 / -0.018 |
0.00 / -0.030 |
0.00 / -0.048 |
0.00 / -0.075 |
6.01-10.00 mm |
0.00 / -0.015 |
0.00 / -0.022 |
0.00 / -0.036 |
0.00 / -0.058 |
0.00 / -0.090 |
10.01-18.00 mm |
0.00 / -0.018 |
0.00 / -0.027 |
0.00 / -0.043 |
0.00 / -0.070 |
0.00 / -0.110 |
18.01-30.00 mm |
0.00 / -0.021 |
0.00 / -0.033 |
0.00 / -0.052 |
0.00 / -0.084 |
0.00 / -0.130 |
30.01-50.00 mm |
0.00 / -0.025 |
0.00 / -0.039 |
0.00 / -0.062 |
0.00 / -0.100 |
0.00 / -0.160 |
50.01-180.00 mm |
0.00 / -0.030 |
0.00 / -0.046 |
0.00 / -0.074 |
0.00 / -0.120 |
0.00 / -0.190 |
80.01-120.00 mm |
0.00 / -0.035 |
0.00 / -0.054 |
0.00 / -0.087 |
0.00 / -0.140 |
0.00 / -0.220 |
120.01-180.00 mm |
0.00 / -0.025 |
0.00 / -0.039 |
0.00 / -0.062 |
0.00 / -0.100 |
0.00 / -0.160 |
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