Metric Fine Threads (MF) Unit: mm Miniature threads (S) Unit: mm

SP

SizeMinor D Max.iameter Min.Drill SizeRecommended Hole Size
MF76×274.21073.83574.0074.10
MF76×1.574.67674.37674.5074.60
MF78×276.21075.83576.0076.10
MF80×476.27075.67076.0076.10
MF80×377.25276.75277.0077.10
MF80×278.21077.83578.0078.10
MF80×1.578.67678.37678.5078.60
MF82×280.21079.83580.0080.10
MF85×481.27080.67081.0081.10
MF85×382.25281.75282.0082.10
MF85×283.21082.83583.0083.10
MF90×486.27085.67086.0086.10
MF90×387.25286.75287.0087.10
MF90×288.21087.83588.0088.10
MF95×491.27090.67091.0091.10
MF95×392.25291.75292.0092.10
MF95×293.21092.83593.0093.10
MF100×496.27095.67096.0096.10
MF100×397.25296.75297.0097.10
MF100×298.21097.83598.0098.10
SizeRecommended Hole Size
S0.4X0.10.32
S0.5X0.1250.41
S0.6X0.150.49
S0.7X0.1750.57
S0.8X0.20.65
S0.9X0.2250.73

ROLL

LONG

Unified Coarse Threads (UNC) Unit: mm Unified Fine Threads (UNF) Unit: mm

SizeMinor D Max.iameter Min.Drill SizeRecommended Hole SizeSizeMinor D Max.iameter Min.Drill SizeRecommended Hole Size
No. 1-64 UNC1.5821.4251.551.54No. 0 -80 UNF1.3051.1821.251.27
No. 2-56 UNC1.8711.6951.801.83No. 1 -72 UNF1.6121.4741.551.58
No. 3-48 UNC2.1461.9412.102.09No. 2 -64 UNF1.9121.7561.851.87
No. 4-40 UNC2.3852.1572.302.33No. 3 -56 UNF2.1972.0252.102.15
No. 5-40 UNC2.6972.4872.602.64No. 4 -48 UNF2.4582.2712.402.41
No. 6-32 UNC2.8952.6422.802.83No. 5 -44 UNF2.7402.5512.702.69
No. 8-32 UNC3.5303.3023.403.47No. 6 -40 UNF3.0222.8202.902.97
No. 10-24 UNC3.9623.6833.903.89No. 8 -36 UNF3.6063.4043.503.55
No. 12-24 UNC4.5974.3444.504.53No. 10 -32 UNF4.1653.9634.104.12
1/4-20 UNC5.2574.9795.105.19No. 12 -28 UNF4.7244.4964.604.67
5/16-18 UNC6.7316.4016.606.651/4 -28 UNF5.5885.3605.505.53
3/8-16 UNC8.1537.7988.008.075/16 -24 UNF7.0356.7826.906.97
7/16-14 UNC9.5509.1449.409.453/8 -24 UNF8.6368.3828.508.57
1/2-13 UNC11.02310.59210.9010.917/16 -20 UNF10.0339.7299.909.96
9/16-12 UNC12.44611.98912.2012.331/2 -20 UNF11.60711.32911.5011.54
5/8-11 UNC13.86813.38613.6013.759/16 -18 UNF13.08112.75112.9013.00
3/4-10 UNC16.84016.30716.6016.75/8 -18 UNF14.68114.35114.5014.6
7/8-9 UNC19.76119.17719.6019.613/4 -16 UNF17.67817.32317.5017.59
1-8 UNC22.60621.97122.3022.457/8 -14 UNF20.67520.27020.5020.57
1 1/8-7 UNC25.34924.63825.0025.171 -12 UNF23.57123.11423.3023.46
1“1/4-7 UNC28.52427.81328.2028.351“1/8 -12 UNF26.74626.28926.5026.63
1“3/8-6 UNC31.11530.35330.8030.921“1/4 -12 UNF29.92129.46429.6029.81
1“1/2-6 UNC34.29033.52834.0034.101“3/8 -12 UNF33.09632.63932.8032.98
1“3/4-5 UNC39.82738.96439.5039.611“1/2 -12 UNF36.27135.81436.0036.16
2-4.5 UNC45.59344.67945.2045.37

TAPS

SPECIAL

THREADS,

CENTER

DRILLS