Tapping Screw

ANSI TAPPING SCREW TYPE A

SizeTPIMajor Dia. (D)Rolling Dia. (d)
MaxMinMaxMin
NO.0401.521.441.201.15
NO.1321.901.821.501.45
NO.2322.232.131.801.75
NO.3282.562.462.102.05
NO.4242.892.792.302.25
NO.5203.303.202.652.60
NO.6183.583.452.802.75
NO.7164.013.863.153.10
NO.8154.264.113.353.30
NO.9144.554.403.503.45
NO.10124.924.773.753.70
NO.12115.615.464.404.35
NO.14106.456.295.105.05
NO.16107.116.965.705.65
NO.1897.777.626.106.05

ANSI TAPPING SCREW TYPE AB, B

SizeTPIMajor Dia. (D)Rolling Dia. (d)
MaxMinMaxMin
NO.0481.521.441.251.20
NO.1421.901.821.601.55
NO.2322.232.131.801.75
NO.3282.562.462.052.00
NO.4242.892.792.302.25
NO.5203.303.202.602.55
NO.6203.533.432.852.80
NO.7193.913.783.153.10
NO.8184.214.093.403.35
NO.10164.804.653.903.85
NO.12145.465.314.404.35
1/4146.256.105.205.15
5/16128.007.826.756.70
3/8129.659.428.458.35
7/161011.1710.949.759.70

TAPPING SCREW W.T. TYPE A

SizeTPIMajor Dia. (D)Rolling Dia. (d)
MaxMinMaxMin
3/32”322.482.381.851.80
1/8”243.273.172.602.55
5/32”164.073.973.203.15
3/16”124.864.763.753.70
1/4”106.456.355.205.15
5/16”98.007.906.356.30
3/8”79.639.537.657.60
1/2”612.8012.7010.4510.40

JIS TAPPING SCREW TYPE A

SizeTPIMajor Dia. (D)Rolling Dia. (d)
MaxMinMaxMin
M1.0601.051.000.870.82
M1.2561.251.201.051.00
M1.4481.501.401.201.15
M1.7401.801.701.451.40
M2.0322.102.001.751.70
M2.3322.402.302.001.95
M2.6282.702.602.202.15
M3.0243.103.002.452.40
M3.5183.653.502.852.80
M4.0164.154.003.303.25
M4.5144.654.503.603.55
M5.0125.205.003.953.90
M6.0106.206.004.804.75
M8.098.208.006.456.40

JIS TAPPING SCREW TYPE 2, TYPE 4

SizeTPIMajor Dia. (D)Rolling Dia. (d)
MaxMinMaxMin
M1.0641.000.950.880.83
M1.2641.201.151.051.00
M1.4561.401.351.201.15
M1.7481.701.621.451.40
M2.0402.001.901.701.65
M2.3322.302.201.901.85
M2.6282.602.502.152.10
M3.0243.002.902.452.40
M3.5203.503.402.852.80
M4.0184.003.853.303.25
M4.5164.504.353.603.55
M5.0165.004.854.104.05
M6.0146.005.855.055.00
M8.0128.007.856.806.75

DIN 1970 TAPPING SCREW

SizePitchMajor Dia. (D)Rolling Dia. (d)
MaxMinMaxMin
2.20.792.242.131.801.75
2.91.062.902.792.302.25
3.51.273.533.432.802.75
3.91.343.913.783.153.10
4.21.414.224.083.403.35
4.81.594.804.653.853.80
5.51.815.465.314.404.35
6.31.816.256.105.155.10
8.02.128.007.826.756.70

Thread Rolling Die Information

T.R.D. Size

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