ASME B16.5 Imperial Stud Bolts with Chamfered End for Flange Bolting


Continuous And Double End Stud

ASME B16.5 Imperial Dimensions for Continuous Thread Studs (mm)

Nominal Size Diameter, D Chamfered Thread Distance, U
UNC Threads UNF Threads 8UN Threads
Min. Max. Min. Max. Min. Max.
1/4 6.350 1.270 2.540 0.914 1.803
5/16 7.938 1.422 2.819 1.067 2.108
3/8 9.525 1.600 3.175 1.067 2.108
7/16 11.113 1.829 3.632 1.270 2.540
1/2 12.700 1.956 3.912 1.270 2.540
9/16 14.288 2.134 4.242 1.422 2.819
5/8 15.875 2.311 4.623 1.422 2.819
3/4 19.050 2.540 5.080 1.600 3.175
7/8 22.225 2.819 5.639 1.829 3.632
1 25.400 3.175 6.350 2.134 4.242
1 1/8 28.575 3.632 7.264 2.134 4.242 3.175 6.350
1 1/4 31.750 3.632 7.264 2.134 4.242 3.175 6.350
1 3/8 34.925 4.242 8.458 2.134 4.242 3.175 6.350
1 1/2 38.100 4.242 8.458 2.134 4.242 3.175 6.350
1 5/8 41.275 3.175 6.350
1 3/4 44.450 5.080 10.160 3.175 6.350
1 7/8 47.625 3.175 6.350
2 50.800 5.639 11.278 3.175 6.350
2 1/4 57.150 5.639 11.278 3.175 6.350
2 1/2 63.500 6.350 12.700 3.175 6.350
2 3/4 69.850 6.350 12.700 3.175 6.350
3 76.200 6.350 12.700 3.175 6.350
3 1/4 82.550 6.350 12.700 3.175 6.350
3 1/2 88.900 6.350 12.700 3.175 6.350
3 3/4 95.250 6.350 12.700 3.175 6.350
4 101.600 6.350 12.700 3.175 6.350

ASME B16.5 Imperial Thread Stud Length Tolerances (mm)

Range, LT Tolerance
From 19.05 through 63.5 ±1.016
Over 63.5 through 101.6 ±2.032
Over 101.6 through 203.2 ±2.540
Over 203.2 through 406.4 ±3.048
Over 406.4 ±4.572

ASME B16.5 Imperial Dimensions for Continuous Thread Studs (Inch)

Nominal Size Diameter, D Chamfered Thread Distance, U
UNC Threads UNF Threads 8UN Threads
Min. Max. Min. Max. Min. Max.
1/4 0.2500 0.050 0.100 0.036 0.071
5/16 0.3125 0.056 0.111 0.042 0.083
3/8 0.3750 0.063 0.125 0.042 0.083
7/16 0.4375 0.072 0.143 0.050 0.100
1/2 0.5000 0.077 0.154 0.050 0.100
9/16 0.5625 0.084 0.167 0.056 0.111
5/8 0.6250 0.091 0.182 0.056 0.111
3/4 0.7500 0.100 0.200 0.063 0.125
7/8 0.8750 0.111 0.222 0.072 0.143
1 1.0000 0.125 0.250 0.084 0.167
1 1/8 1.1250 0.143 0.286 0.084 0.167 0.125 0.250
1 1/4 1.2500 0.143 0.286 0.084 0.167 0.125 0.250
1 3/8 1.3750 0.167 0.333 0.084 0.167 0.125 0.250
1 1/2 1.5000 0.167 0.333 0.084 0.167 0.125 0.250
1 5/8 1.6250 0.125 0.250
1 3/4 1.7500 0.200 0.400 0.125 0.250
1 7/8 1.8750 0.125 0.250
2 2.0000 0.222 0.444 0.125 0.250
2 1/4 2.2500 0.222 0.444 0.125 0.250
2 1/2 2.5000 0.250 0.500 0.125 0.250
2 3/4 2.7500 0.250 0.500 0.125 0.250
3 3.0000 0.250 0.500 0.125 0.250
3 1/4 3.2500 0.250 0.500 0.125 0.250
3 1/2 3.5000 0.250 0.500 0.125 0.250
3 3/4 3.7500 0.250 0.500 0.125 0.250
4 4.0000 0.250 0.500 0.125 0.250

ASME B16.5 Imperial Thread Stud Length Tolerances (Inch)

Range, LT Tolerances
From ¾ through 2½ ±0.04
Over 2½ through 4 ±0.08
Over 4 through 8 ±0.10
Over 8 through 16 ±0.12
Over 16 ±0.18