Cold heading Service

Hex Bolts ASME B18.2.1 Dimension:

Nomianal Size or Basic product DiameterFull-Size Body Diameter, EWidth Across Flats, FWidth Across Corners, GHead Height, HRadius of Fillet, RThread Length for Bolt Lengths, LT
6 in. & ShorterOver 6 in.
Max.Min.BasicMax.Min.Max.Min.BasicMax.Min.Max.Min.Nom.Nom.
1/4
0.2500
0.2600.2377/160.4380.4250.5050.48411/640.1880.1500.030.010.7501.000
5/16
0.3125
0.3240.2981/20.5000.4840.5770.5527/320.2350.1950.030.010.8751.125
3/8
0.3750
0.3880.3609/160.5620.5440.6500.6201/40.2680.2260.030.011.0001.250
7/16
0.4375
0.4520.4215/80.6250.6030.7220.68719/640.3160.2720.030.011.1251.375
1/2
0.5000
0.5150.4823/40.7500.7250.8660.82611/320.3640.3020.030.011.2501.500
5/8
0.6250
0.6420.60515/160.9380.9061.0831.03327/640.4440.3780.060.021.5001.750
3/4
0.7500
0.7680.7291 1/81.1251.0881.2991.2401/20.5240.4550.060.021.7502.000
7/8
0.8750
0.8950.8521 5/161.3121.2691.5161.44737/640.6040.5310.060.022.0002.250
1
1.0000
1.0220.9761 1/21.5001.4501.7321.65343/640.7000.5910.090.032.2502.500
1 1/8
1.1250
1.1491.0981 11/161.6881.6311.9491.8593/40.7800.6580.090.032.5002.750
1 1/4
1.2500
1.2771.2231 7/81.8751.8122.1652.06627/320.8760.7490.090.032.7503.000
1 3/8
1.3750
1.4041.3452 1/162.0621.9942.3822.27329/320.9400.8100.090.033.0003.250
1 1/2
1.5000
1.5311.4702 1/42.2502.1752.5982.4801/1.0360.9020.090.033.2503.500
1 5/8
1.6250
1.6581.5912 7/162.4382.3562.8152.6161 3/321.1160.9780.090.033.5003.750
1 3/4
1.7500
1.7851.7162 5/82.6252.5383.0312.8931 5/321.1961.0540.120.043.7504.000
1 7/8
1.8750
1.9121.8392 13/162.8122.7193.2483.0991 1/41.2761.1300.120.044.0004.250
2
2.000
2.0391.96433.0002.90003.4643.3061 11/321.3881.1750.120.044.2504.500
2 1/4
2.2500
2.3052.2143 3/83.3753.2623.8973.7191 1/21.5481.3270.190.064.7505.000
2 1/2
2.5000
2.5592.4613 3/43.7503.6254.3304.1331 21/321.7081.4790.190.065.2505.500
2 3/4
2.7500
2.8272.7114 1/84.1253.9884.7634.5461 13/161.8691.6320.190.065.7506.000
3
3.000
3.0812.9614 1/24.5004.3505.1964.95922.0601.8150.190.066.2506.500
3 1/4
3.2500
3.3353.2104 7/84.8754.7125.6295.3722 3/162.2511.9360.190.066.7507.000
3 1/2
3.5000
3.5893.4615 1/45.2505.0756.0625.7862 5/162.3802.0570.190.067.2507.500
3 3/4
3.7500
3.8583.7265 5/85.6255.4376.4956.1982 1/22.5722.2410.190.067.7508.000
4
4.000
4.1113.97566.0005.8006.9286.6122 11/162.7642.4240.190.068.2508.500