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Other Kinds of Tools
(Machine And Hand Taps-Ansi Standard )


Material: Alloy Tool Steel
(UNC)
Metric System:mm
Thread specification d Pitch p Nominal Diameter d Thread Length l Overall Length L Shank Diameter d1 Size of Square a
1-64 0.397 1.584 9.5 43 3.58 2.8
2-56 0.454 2.184 11 44.5
3-48 0.529 2.515 12.5 46
4-40 0.635 2.844 14 47.5
5-40 3.175 16 49
6-32 0.794 3.505 17.5 51
8-32 4.166 19 54 4.27 3.3
10-24 1.058 4.826 22 60 4.93 3.9
12-24 1.058 5.486 24 5.6 4.2
1/4-20 1.270 6.35 25.5 63.5 6.48 4.9
5/16-18 1.411 7.938 28.5 69 6.3 5.0
3/8-16 1.588 9.525 32 74.5 7.1 5.6
7/16-14 1.814 11.112 36.5 80 8.2 6.2
1/2-13 1.954 12.7 42 85.5 9.3 7.0
9/16-12 2.117 14.288 91 10.9 8.2
5/8-11 2.309 15.875 46 96.5 12.2 9.1
3/4-10 2.54 19.05 51 108 15 11.2
7/8-9 2.822 22.225 56.5 119 17.7 13.3
1"-8 3.175 25.4 63.5 130 20.3 15.2



(UNF)
Metric System:mm
Thread specification d Pitch p Nominal Diameter d Thread Length l Overall Length L Shank Diameter d1 Size of Square a
0-80 0.318 1.524 8 41 3.58 2.8
1-72 0.353 1.584 9.5 43
2-64 0.397 2.184 11 44.5
3-56 0.454 2.515 12.5 46
4-48 0.529 2.844 14 47.5
5-44 0.577 3.175 16 49
6-40 0.635 3.505 17.5 51
8-36 0.706 4.166 19 54 4.27 3.3
10-32 0.794 4.826 22 60 4.93 3.9
12-28 0.907 5.486 24 5.6 4.2
1/4-28 6.35 25.5 63.5 6.48 4.9
5/16-24 1.058 7.938 28.5 69 6.3 5.0
3/8-24 9.525 32 74.5 7.1 5.6
7/16-20 1.270 11.112 36.5 80 8.2 6.2
1/2-20 12.70 42 85.5 9.3 7.0
9/16-18 1.411 14.288 91 10.9 8.2
5/8-18 15.875 46 96.5 12.2 9.1
3/4-16 1.588 19.05 51 108 15 11.2
7/8-14 1.814 22.225 56.5 119 17.7 13.3
1"-12 2.117 25.4 63.5 130 20.3 15.2


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