Standard Thread
Standard Threads
Internal Threads：
| Thread | Hole Diameter(in) | Max Thread Depth(in) |
|---|---|---|
|
0-80 UNC |
0.047 |
0.157 |
|
1-64 UNC |
0.059 |
0.177 |
|
2-56 UNC |
0.070 |
0.306 |
|
2-64 UNF |
0.070 |
0.306 |
|
4-40 UNC |
0.089 |
0.394 |
|
4-48 UNF |
0.094 |
0.394 |
|
5-40 UNC |
0.102 |
0.438 |
|
5-44 UNF |
0.104 |
0.438 |
|
6-32 UNC |
0.107 |
0.481 |
|
6-40 UNF |
0.113 |
0.481 |
|
8-32 UNC |
0.136 |
0.525 |
|
8-36 UNF |
0.136 |
0.525 |
|
10-24 UNC |
0.150 |
0.612 |
|
10-32 UNF |
0.159 |
0.612 |
|
1/4-20 UNC |
0.201 |
0.750 |
|
1/4-28 UNF |
0.213 |
0.750 |
|
5/16-18 UNC |
0.257 |
0.844 |
|
5/16-24 UNF |
0.272 |
0.844 |
|
3/8-16 UNC |
0.313 |
0.938 |
|
3/8-24 UNF |
0.332 |
0.938 |
|
7/16-14 UNC |
0.368 |
1.078 |
|
7/16-20 UNF |
0.391 |
1.078 |
|
1/2-13 UNC |
0.422 |
1.242 |
|
1/2-20 UNF |
0.453 |
1.242 |
|
9/16-12 UNC |
0.484 |
1.250 |
|
9/16-18 UNF |
0.500 |
1.250 |
|
5/8-11 UNC |
0.531 |
1.250 |
|
5/8-18 UNF |
0.563 |
1.250 |
|
3/4-10 UNC |
0.656 |
1.250 |
|
3/4-16 UNF |
0.688 |
1.250 |
| Metric | Hole Diameter(in) | Max Thread Depth(in) |
|---|---|---|
|
M2x0.4 |
0.063 |
0.306 |
|
M2.5×0.45 |
0.081 |
0.350 |
|
M3x0.5 |
0.098 |
0.438 |
|
M3.5×0.6 |
0.114 |
0.481 |
|
M4x0.7 |
0.130 |
0.525 |
|
M5x0.8 |
0.165 |
0.612 |
|
M6x1.0 |
0.197 |
0.750 |
|
M8x1.25 |
0.264 |
0.900 |
|
M10x1.5 |
0.335 |
0.938 |
|
M12x1.75 |
0.402 |
1.242 |
| STI Threads | Hole Diameter(in) | Max Thread Depth(in) |
|---|---|---|
|
2-56 UNC |
0.091 |
0.306 |
|
4-40 UNC |
0.118 |
0.394 |
|
4-48 UNF |
0.118 |
0.394 |
|
5-40 UNC |
0.134 |
0.438 |
|
6-32 UNC |
0.146 |
0.481 |
|
8-32 UNC |
0.172 |
0.525 |
|
8-36 UNF |
0.172 |
0.525 |
|
10-24 UNC |
0.201 |
0.612 |
|
10-32 UNF |
0.201 |
0.612 |
|
1/4-20 UNC |
0.264 |
0.750 |
|
M2x0.4 |
0.083 |
0.306 |
|
M2.5×0.45 |
0.104 |
0.350 |
|
M3x0.5 |
0.126 |
0.438 |
|
M4x0.7 |
0.167 |
0.525 |
|
M5x0.8 |
0.209 |
0.612 |
|
M6x1.0 |
0.248 |
0.750 |
|
M8x1.25 |
0.331 |
0.900 |
|
M10x1.5 |
0.413 |
0.938 |
|
M12x1.75 |
0.492 |
1.242 |
External Threads
| Thread | Boss Diameter (in) | Max Thread Length (in) |
|---|---|---|
|
UNC/UNF |
||
|
2-56 UNC |
0.086 |
0.20 |
|
2-64 UNF |
0.086 |
0.20 |
|
4-40 UNC |
0.112 |
0.22 |
|
4-48 UNF |
0.112 |
0.22 |
|
5-40 UNC |
0.125 |
0.25 |
|
5-44 UNF |
0.125 |
0.25 |
|
6-32 UNC |
0.138 |
0.28 |
|
6-40 UNF |
0.138 |
0.28 |
|
8-32 UNC |
0.164 |
0.33 |
|
8-36 UNF |
0.164 |
0.33 |
|
10-24 UNC |
0.190 |
0.38 |
|
10-32 UNF |
0.190 |
0.38 |
|
1/4-20 UNC |
0.250 |
0.50 |
|
1/4-28 UNF |
0.250 |
0.50 |
|
5/16-18 UNC |
0.313 |
0.675 |
|
5/16-24 UNF |
0.313 |
0.675 |
|
3/8-16 UNC |
0.375 |
0.75 |
|
3/8-24 UNF |
0.375 |
0.75 |
|
7/16-14 UNC |
0.438 |
0.875 |
|
7/16-20 UNF |
0.438 |
0.875 |
|
1/2-13 UNC |
0.500 |
1.00 |
|
1/2-20 UNF |
0.500 |
1.00 |
|
9/16-12 UNC |
0.563 |
1.25 |
|
9/16-18 UNF |
0.563 |
1.25 |
|
5/8-11 UNC |
0.625 |
1.25 |
|
5/8-18 UNF |
0.625 |
1.25 |
|
3/4-10 UNC |
0.750 |
1.50 |
|
3/4-16 UNF |
0.750 |
1.50 |
|
7/8-9 UNC |
0.875 |
2.00 |
|
7/8-14 UNF |
0.875 |
2.00 |
|
1″-8 UNC |
1.000 |
2.50 |
|
1″-12 UNF |
1.000 |
2.50 |
| Metric | Boss Diameter (in) | Max Thread Length (in) |
|---|---|---|
|
M2x0.4 |
0.079 |
0.276 |
|
M2.5×0.45 |
0.098 |
0.276 |
|
M3x0.5 |
0.118 |
0.276 |
|
M3.5×0.6 |
0.138 |
0.276 |
|
M4x0.7 |
0.157 |
0.500 |
|
M5x0.8 |
0.197 |
0.500 |
|
M6x1.0 |
0.236 |
0.500 |
|
M8x1.25 |
0.315 |
0.500 |
|
M10x1.5 |
0.394 |
1.000 |
|
M12x1.75 |
0.472 |
1.000 |
|
M14x2.0 |
0.551 |
1.500 |
|
M16x2.5 |
0.630 |
1.500 |
|
M24x3.0 |
0.945 |
2.000 |