UNC |
||||||
Insert Size |
Drill Size |
Wire Thread Insert Length |
||||
1D |
1.5D |
2D |
2.5D |
3D |
||
2-56 |
2.3 mm |
0.086 |
0.129 |
0.172 |
0.215 |
0.258 |
3-48 |
2.7 mm |
0.099 |
0.148 |
0.198 |
0.248 |
0.297 |
4-40 |
3.0 mm |
0.112 |
0.168 |
0.224 |
0.280 |
0.336 |
5-40 |
3.4 mm |
0.125 |
0.188 |
0.250 |
0.312 |
0.375 |
6-32 |
3.7 mm |
0.138 |
0.207 |
0.276 |
0.345 |
0.414 |
8-32 |
11/64 |
0.164 |
0.246 |
0.328 |
0.410 |
0.492 |
10-24 |
5.1 mm |
0.190 |
0.285 |
0.380 |
0.475 |
0.570 |
12-24 |
5.8 mm |
0.216 |
0.324 |
0.432 |
0.540 |
0.648 |
1/4-20 |
6.7 mm |
0.250 |
0.375 |
0.500 |
0.625 |
0.750 |
5/16-18 |
8.3 mm |
0.312 |
0.469 |
0.625 |
0.781 |
0.938 |
3/8-16 |
9.9 mm |
0.375 |
0.562 |
0.750 |
0.938 |
1.125 |
7/16-14 |
29/64 |
0.438 |
0.656 |
0.875 |
1.094 |
1.313 |
1/2-13 |
33/64 |
0.500 |
0.750 |
1.000 |
1.250 |
1.500 |
9/16-12 |
14.75 mm |
0.562 |
0.844 |
1.125 |
1.406 |
1.688 |
5/8-11 |
16.5 mm |
0.625 |
0.938 |
1.250 |
1.563 |
1.875 |
3/4-10 |
19.75 mm |
0.750 |
1.125 |
1.500 |
1.875 |
2.250 |
7/8-9 |
23.0 mm |
0.875 |
1.313 |
1.750 |
2.188 |
2.625 |
1-8 |
1-1/32 |
1.000 |
1.500 |
2.000 |
2.500 |
3.000 |
1.1/8-7 |
1-5/32 |
1.125 |
1.688 |
2.250 |
2.813 |
3.375 |
1.1/4-7 |
1-9/32 |
1.250 |
1.875 |
2.500 |
3.125 |
3.750 |
1.3/8-6 |
36.0 |
1.375 |
2.063 |
2.750 |
3.438 |
4.125 |
1.1/2-6 |
1-35/64 |
1.500 |
2.250 |
3.000 |
3.750 |
4.500 |
UNF |
||||||
Insert Size |
Drill Size |
Wire Thread Insert Length |
||||
1D |
1.5D |
2D |
2.5D |
3D |
||
2-64 |
2.3 mm |
0.086 |
0.129 |
0.172 |
0.215 |
0.258 |
3-56 |
2.65 mm |
0.099 |
0.148 |
0.198 |
0.248 |
0.297 |
4-48 |
3.0 mm |
0.112 |
0.168 |
0.224 |
0.280 |
0.336 |
5-44 |
3.3 mm |
0.125 |
0.188 |
0.250 |
0.312 |
0.375 |
6-40 |
3.7 mm |
0.138 |
0.207 |
0.276 |
0.345 |
0.414 |
8-36 |
11/64 |
0.164 |
0.246 |
0.328 |
0.410 |
0.492 |
10-32 |
5.1 mm |
0.190 |
0.285 |
0.380 |
0.475 |
0.570 |
1/4-28 |
6.6 mm |
0.250 |
0.375 |
0.500 |
0.625 |
0.750 |
5/16-24 |
8.2 mm |
0.312 |
0.469 |
0.625 |
0.781 |
0.938 |
3/8-24 |
9.8 mm |
0.375 |
0.562 |
0.750 |
0.938 |
1.125 |
7/16-20 |
29/64 |
0.438 |
0.656 |
0.875 |
1.094 |
1.313 |
1/2-20 |
33/64 |
0.500 |
0.750 |
1.000 |
1.250 |
1.500 |
9/16-18 |
37/64 |
0.562 |
0.844 |
1.125 |
1.406 |
1.688 |
5/8-18 |
41/64 |
0.625 |
0.938 |
1.250 |
1.563 |
1.875 |
3/4-16 |
49/64 |
0.750 |
1.125 |
1.500 |
1.875 |
2.250 |
7/8-14 |
22.75 mm |
0.875 |
1.313 |
1.750 |
2.188 |
2.625 |
1-12 |
26.0 mm |
1.000 |
1.500 |
2.000 |
2.500 |
3.000 |
1.1/8-12 |
29.25 mm |
1.125 |
1.688 |
2.250 |
2.813 |
3.375 |
1.1/4-12 |
1-17/64 |
1.250 |
1.875 |
2.500 |
3.125 |
3.750 |
1.3/8-12 |
35.5 mm |
1.375 |
2.063 |
2.750 |
3.438 |
4.125 |
1.1/2-12 |
38.5 mm |
1.500 |
2.250 |
3.000 |
3.750 |
4.500 |
