Unified Threads (UNC/UNF) Unit: mm

SizeKind ofClassMajor diameterPitch DiameterMinor diameter
tapBasic SizeBasic SizeUpper Tolerance (μm) +Lower Tolerance (μm) +Tolerance (μm)Basic Size
P1251015
pP2402515
ng ta3B317527642210122487
utti2B..351619.
cGH225.412.712.7
GH338.125.412.7
No.5-40UNC3BX382513
p2BX513813
ng taG4317527645138132487
rmiG5..645113.
foH338.125.412.7
H563.550.812.7
P1251015
pP2402515
g ta3B21912
uttin2B3.1752.7993415192.550
cGH225.412.712.7
No5-44UNFGH338.125.412.7
.3BX382513
p2BX513813
g taG4513813
rminG53.1752.7996451132.550
foH338.125.412.7
H563.550.812.7
P120020
P2402020
P3604020
3B251114
g tap2B381820
ttin2BX3.5052.9905838202.647
cuGH225.412.712.7
GH338.125.412.7
No.6-32UNCGH450.838.112.7
GH563.550.812.7
3BX513813
2BX645113
tapG5645113
ingG63.5052.9907664122.647
formG7897613
H338.125.412.7
H563.550.812.7
P1251015
P2402515
P3554015
tap3B23914
No.6-40UNFing2B3.5053.0943616202.817
cutt2BX513120
GH225.412.712.7
GH3381254127
GH4. 50.8. 38.1. 12.7
SizeKind ofClassMajor diameterPitch D Uiamete LrMinor diameterSP
tapBasic SizeBasic Sizepper Tolerance (μm) +ower Tolerance (μm) +Tolerance (μm)Basic Size
3BX382513
tap2BX645113
No.6-40UNFmingG53.5053.0946451132.817SL
forH338.125.412.7
H563.550.812.7
P120020
P2402020PO
P3604020
p3B251114
g ta2B416636503918213307
tin2BX..593821.
cutGH225.412.712.7ST
GH338.125.412.7
N832UNCGH450.838.112.7
o.-GH563.550.812.7ROLL
3BX513813
2BX645113
apG5645113
ming tG6 G74.1663.65076 8964 7612 133.307CARBIDE
forG81028913
H338.125.412.7
H563.550.812.7
P120020LONG
P2402020
P3604020
ap3B241014
ing t2B4.1663.7083817213.401HAND
cutt2BX583721TAPS
No8-36UNFGH225.412.712.7
.GH338.125.412.7
GH450.838.112.7EG (STI)
3BX513813
tap2BX645113
ingG54.1663.7086451133.401
formH338.125.412.7SPECIAL
H563.550.812.7THREADS, GAUGES
P120020
P2402020
P3604020THREAD
p3B271314MILLS
ta2B422022
tting2BX4.8264.1386240223.680
cuGH225.412.712.7
GH3381254127DIES
No10-24UNC...
.GH450.838.112.7
GH563.550.812.7
3BX513813
2BX766412CENTER
g tapG6766412DRILLS
in4.8264.1383.680
mG7897613
forH450.838.112.7
H6762635127Technical
...info