Tapped Hole Identification and Selectable Sizes

Inch Thickness Gauge Standard

Tapped Hole Identification

  • Hole diameter information in meviy’s hole information database is registered corresponding to the nominal diameters of tapped holes from each uploadable file extension. Detected hole diameters are checked against the table below (Table 1).
  • *If the detected diameter does not match any entry in the table, the hole will be treated as a through hole. However, you can change the hole type or nominal diameter when configuring the quote settings.
  • *If a diameter corresponds to multiple nominal diameters (below, 5.00 mm), the larger nominal diameter (M6) will be prioritized and selected.
Table 1) With Default Settings: Table of Hole Diameters Corresponding to Tapped Hole Identification by File Extension
Tapped Hole Nominal DiameterThread TypeFile Extension
STEP (.step / .stp)
Parasolid (.x_t/.x_b/.xmt /.xmt_txt)
ACIS (.sat/.sab)
JT (.jt)
PRC (.prc)
I-deas (.arc/.unv)
SOLIDWORKS (.sldprt)Solid Edge (.par/.pwd)Creo (.neu/.prt/.xpr)Autodesk Inventor (.ipt)
#1-64UNC1.421.431.51.511.591.85 1.511.511.421.851.511.43
#1-72UNF1.471.511.541.611.85  1.511.511.471.851.511.47
#2-56UNC1.691.781.852.18   1.781.781.692.181.781.69
#2-64UNF1.761.781.831.931.992.18 1.782.181.992.181.781.76
#3-48UNC1.941.992.042.182.51  1.991.991.942.511.991.94
#3-56UNF2.022.082.112.262.51  2.082.082.022.512.082.02
#4-40UNC2.162.262.272.442.84  2.262.262.162.842.262.16
#4-48UNF2.122.162.272.362.372.382.492.372.122.272.842.382.27
#5-40UNC2.492.582.592.783.18  2.582.582.493.182.582.49
#5-44UNF2.552.642.652.793.18  2.642.642.553.182.642.55
#6-32UNC2.642.652.712.772.953.51 2.712.712.653.512.712.64
#6-40UNF2.822.872.923.053.51  2.872.872.823.512.872.82
#8-32UNC3.33.313.423.453.664.17 3.453.453.314.173.453.3
#8-36UNF3.43.453.513.734.17  3.453.453.44.173.453.4
#10-24UNC3.683.83.824.094.83  3.83.83.684.833.83.68
#10-32UNF3.963.974.044.064.314.83 4.044.043.974.834.043.96
#12-24UNC4.344.474.54.85.49  4.54.54.345.494.54.34
#12-28UNF4.54.614.624.915.49  4.624.624.55.494.624.5
1/4-20UNC4.985.085.115.125.566.35 5.115.114.986.355.114.98
1/4-28UNF5.365.375.415.445.475.796.355.415.415.376.355.415.36
5/16-18UNC6.46.416.536.577.047.94 6.536.536.417.946.536.4
5/16-24UNF6.786.796.917.147.94  6.916.916.797.946.916.78
3/8-16UNC7.87.817.947.988.439.53 7.947.947.819.537.947.8
3/8-24UNF8.388.438.518.849.53  8.438.438.389.538.438.38
7/16-14UNC9.149.159.359.9211.11  9.359.359.1511.119.359.14
7/16-20UNF9.739.749.889.9210.3211.11 9.929.929.7411.119.929.73
1/2-13UNC10.5810.5910.7210.8111.5112.7 10.7210.7210.5812.710.7210.59
1/2-20UNF11.3311.4711.5111.9112.7  11.5111.5111.3312.711.5111.33
9/16-12UNC11.991212.2212.313.114.29 12.312.31214.2912.311.99
9/16-18UNF12.7512.7612.8612.9213.113.4914.2913.113.112.7614.2912.8612.75
5/8-11UNC13.3813.3913.4913.6314.2915.88 13.4913.4913.3815.8813.4913.39
5/8-18UNF14.2814.3514.5214.6815.0815.88 14.6814.6814.3515.8814.2814.35
Table 2) With Tapped Hole Identification Settings: Table of Hole Diameters Identified as Tapped Holes for Each Specified CAD Package
Tapped Hole Nominal DiameterCoarse or FineTapped Hole Identification Settings
SOLIDWORKSSolid EdgeCreoOnshapeAutodesk Inventor
A Type (*1)B Type (*2)Tap drill diameterInternal minor diameterNominal diameter
#1-64UNC1.511.511.421.851.511.511.43
#1-72UNF1.471.47
#2-56UNC1.781.781.692.181.781.781.69
#2-64UNF2.181.991.76
#3-48UNC1.991.991.942.511.991.991.94
#3-56UNF2.082.082.022.082.082.02
#4-40UNC2.262.262.162.842.262.262.16
#4-48UNF2.372.122.272.382.372.27
#5-40UNC2.582.582.493.182.582.582.49
#5-44UNF2.642.642.552.642.642.55
#6-32UNC2.712.712.653.512.712.712.64
#6-40UNF2.872.872.822.872.872.82
#8-32UNC3.453.453.314.173.453.453.3
#8-36UNF3.43.4
#10-24UNC3.83.83.684.833.83.83.68
#10-32UNF4.044.043.974.044.043.96
#12-24UNC4.54.54.345.494.54.54.34
#12-28UNF4.624.624.54.624.624.5
1/4-20UNC5.115.114.986.355.115.114.98
1/4-28UNF5.415.415.375.415.415.36
5/16-18UNC6.536.536.417.946.536.536.4
5/16-24UNF6.916.916.796.916.916.78
3/8-16UNC7.947.947.819.537.947.947.8
3/8-24UNF8.438.438.388.438.438.38
7/16-14UNC9.359.359.1511.119.359.359.14
7/16-20UNF9.929.929.749.929.929.73
1/2-13UNC10.7210.7210.5812.710.7210.7210.59
1/2-20UNF11.5111.5111.3311.5111.5111.33
9/16-12UNC12.312.31214.2912.312.311.99
9/16-18UNF13.113.112.7612.8613.112.75
5/8-11UNC13.4913.4913.3815.8813.4913.4913.39
5/8-18UNF14.6814.6814.3514.2814.6814.35

*1 When the SOLIDWORKS hole options selected are “Tap drill diameter” or “Cosmetic threads.”

*2 When the SOLIDWORKS hole option selected is “Remove threads.”

Tapped Hole Size Selection

Tapped holes cannot be selected for perforated metals, shim plate materials (Cold Rolled Low Carbon Steel (for Shims) or 304 Stainless Steel (H) (for Shims)) or clear resin.
MaterialSheet thickness (Gauge)Sheet thickness (Inch)Tapped Hole Diameter
UNCUNFUNCUNFUNCUNFUNCUNFUNCUNFUNCUNFUNCUNFUNCUNF
Cold Rolled Low Carbon Steel
Hot Rolled Low Carbon Steel
220.0299″
200.0359″
190.0418″
180.0478″#4-40#4-48
170.0538″#4-40#4-48
160.0598″#4-40#4-48#5-40#5-44
140.0747″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36
130.0897″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36
120.1046″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32
110.1196″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32
100.1345″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32#12-24#12-28
60.1943″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32#12-24#12-281/4-201/4-285/16-185/16-24

Cold Rolled Low Carbon Steel
(Electrolytic Galvanized)

Cold Rolled Low Carbon Steel
(Hot Galvanaized)

240.0276″        
220.0336″        
200.0396″        
180.0516″#4-40#4-48        
160.0635″#4-40#4-48#5-40#5-44        
140.0785″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36        
304 Stainless Steel220.0312″  
200.0375″  
190.0437″  
180.0500″#4-40#4-48  
160.0625″#4-40#4-48#5-40#5-44  
140.0781″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36  
130.0937″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36  
120.1094″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32  
110.1250″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32  
100.1406″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32#12-24#12-28  
80.1719″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32#12-24#12-281/4-201/4-28  
70.1875″  
30.2500″  
5052 Aluminium Alloy
6061 Aluminium Alloy
0.020″  
0.025″  
0.032″  
0.040″#4-40#4-48  
0.050″#4-40#4-48#5-40#5-44  
0.080″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32  
0.090″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32  
0.100″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32#12-24#12-28  
0.125″#4-40#4-48#5-40#5-44#6-32#6-40#8-32#8-36#10-24#10-32#12-24#12-281/4-201/4-28  
*Only available for 5052 Aluminum Alloy.

Metric Thickness Gauge Standard

Tapped Hole Identification

  • Hole diameter information in meviy’s hole information database is registered corresponding to the nominal diameters of tapped holes from each uploadable file extension. Detected hole diameters are checked against the table below (Table 1).
  • *If the detected diameter does not match any entry in the table, the hole will be treated as a through hole. However, you can change the hole type or nominal diameter when configuring the quote settings.
  • *If a diameter corresponds to multiple nominal diameters (below, 5.00 mm), the larger nominal diameter (M6) will be prioritized and selected.
Table 1) With Default Settings: Table of Hole Diameters Corresponding to Tapped Hole Identification by File Extension
Tapped Hole Nominal Diameter File Extension
  • STEP (.step / .stp)
  • Parasolid (.x_t/.x_b/.xmt /.xmt_txt)
  • ACIS (.sat/.sab)
  • JT (.jt)
  • PRC (.prc)
  • I-deas (.arc/.unv)
  • SOLIDWORKS(.sldprt)
  • Siemens PLM-NX(.prt)
  • Creo (.neu/.prt/.xpr)
  • Solid Edge (.par/.pwd)
  • Pro/ENGINEER (.prt/.neu/.xpr)
  • Autodesk Inventor(.ipt)
  • CATIA V5 (.CATPart)
iCAD SX (.icd)
M3 2.46 2.50 2.53 3.00 2.50 2.46 3.00
M4 3.24 3.30 3.33 4.00 3.30 3.24 4.00
M5 4.13 4.20 4.23 5.00 4.20 4.13 5.00
M6 4.92 5.00 5.04 6.00 5.00 4.92 6.00
M8 6.65 6.75 6.78 6.80 8.00 6.80 6.65 8.00
M10 8.38 8.50 8.53 10.00 8.50 8.38 10.00
M12 10.11 10.20 10.25 10.27 10.30 10.20 10.11 12.00
M14 11.84 12.00 12.02 12.10 12.00 11.84 14.00
M16 13.84 14.00 14.02 16.00 14.00 13.84 16.00
Table 2) With Tapped Hole Identification Settings: Table of Hole Diameters Identified as Tapped Holes for Each Specified CAD Package
Tapped Hole Nominal Diameter Tapped Hole Identification Settings
SOLIDWORKS (Select from 2 types) Siemens PLM-NX Creo Solid Edge Onshape Autodesk Inventor CATIA iCAD SX IronCAD Autodesk Fusion360
A Type (*1) B Type (*2)
M3 2.50 3.00 2.50 2.46 3.00 2.50 2.53
M4 3.30 4.00 3.30 3.24 4.00 3.30 3.33
M5 4.20 5.00 4.20 4.13 5.00 4.20 4.23
M6 5.00 6.00 5.00 4.92 6.00 5.00 5.04
M8 6.80 8.00 6.80 6.65 8.00 6.80 6.78
M10 8.50 10.00 8.50 8.38 10.00 8.50 8.53
M12 10.20 12.00 10.20 10.11 12.00 10.2 10.27
M14 12.00 14.00 12.00 11.84 14.00 12.00 12.02
M16 14.00 16.00 14.00 13.84 16.00 14.00 14.02

*1 When the SOLIDWORKS hole options selected are “Tap drill diameter” or “Cosmetic threads.”

*2 When the SOLIDWORKS hole option selected is “Remove threads.”

Tapped Hole Size Selection

Tapped holes cannot be selected for perforated metals, shim plate materials (Cold Rolled Low Carbon Steel (for Shims) or 304 Stainless Steel (H) (for Shims)) or clear resin.
Material Sheet Thickness Tapped Hole Diameter
  • Low Carbon Steel (Cold/Hot Rolled)
  • 1018 Carbon Steel
  • Cold Rolled Low Carbon Steel (Electrolytic Zinc Plating)
0.8
1.0 M3
1.2 M3
1.6 M3 M4 M5
2.0 M3 M4 M5 M6
2.3 M3 M4 M5 M6
3.2 M3 M4 M5 M6 M8
4.5 M3 M4 M5 M6 M8 M10
6.0 M4 M5 M6 M8 M10
9.0 M6 M8 M10 M12 M14 M16
10.0 M6 M8 M10 M12 M14 M16
  • 304 Stainless Steel
  • (No.1 / 2B / Single-Sided #400-Grit Polished / Single-sided hairline finish)
  • 430 Stainless Steel (2B)
  • 5052 Aluminum Alloy
0.8
1.0 M3
1.2 M3
1.5 M3 M4
1.6(*) M3 M4 M5
2.0 M3 M4 M5 M6
2.5 M3 M4 M5 M6
3.0 M3 M4 M5 M6 M8
4.0 M3 M4 M5 M6 M8 M10
5.0 M3(*) M4 M5 M6 M8 M10
6.0 M4(*) M5 M6 M8 M10
9.0 M6 M8 M10 M12 M14 M16
10.0 M6 M8 M10 M12 M14 M16
12.0 M6 M8 M10 M12 M14 M16

*Only available for 5052 Aluminum Alloy.