3/16" (5 mm) Diameter Lead Screw. Diameter Code 018
Lead |
Lead Code |
Left Hand Avail. |
Outside Diameter (For Reference) |
Root Diameter (For Reference) |
Efficiency %* |
in |
mm |
|
|
in |
mm |
in |
mm |
|
0.02 |
0.5 |
0020 |
|
0.188 |
4.78 |
0.163 |
4.14 |
30 |
0.025 |
0.64 |
0025 |
|
0.188 |
4.78 |
0.15 |
3.81 |
39 |
0.039 |
1 |
0039 |
|
0.188 |
4.78 |
0.144 |
3.66 |
47 |
0.05 |
1.27 |
0050 |
|
0.188 |
4.78 |
0.124 |
3.15 |
58 |
0.1 |
2.54 |
0100 |
|
0.188 |
4.78 |
0.136 |
3.45 |
69 |
0.1875 |
4.76 |
0188 |
|
0.188 |
4.78 |
0.167 |
4.24 |
78 |
0.2 |
5.08 |
0200 |
|
0.188 |
4.78 |
0.124 |
3.15 |
82 |
0.375 |
9.53 |
0375 |
|
0.188 |
4.78 |
0.161 |
4.09 |
84 |
0.4 |
10.16 |
0400 |
|
0.188 |
4.78 |
0.124 |
3.15 |
84 |
0.427 |
10.85 |
0427 |
|
0.188 |
4.78 |
0.162 |
4.11 |
85 |
0.5 |
12.7 |
0500 |
√ |
0.188 |
4.78 |
0.142 |
3.61 |
86 |
** Listed efficiency for Micro screws are theoretical values based on non-coated lead screws.
Shaded areas have been translated from their designed inch or mm dimension to an equivalent mm or inch dimension.
7/32" (5.6 mm) Diameter Lead Screw. Diameter Code 021
Lead |
Lead Code |
Left Hand Avail. |
Outside Diameter (For Reference) |
Root Diameter (For Reference) |
Efficiency %* |
in |
mm |
|
|
in |
mm |
in |
mm |
|
0.024 |
0.61 |
0024 |
|
0.218 |
5.54 |
0.181 |
4.6 |
31 |
0.03125 |
0.79 |
0031 |
|
0.204 |
5.18 |
0.16 |
4.06 |
39 |
0.048 |
1.22 |
0048 |
|
0.216 |
5.49 |
0.156 |
3.96 |
50 |
0.05 |
1.27 |
0050 |
|
0.2 |
5.08 |
0.135 |
3.43 |
52 |
0.0625 |
1.59 |
0063 |
|
0.218 |
5.54 |
0.142 |
3.61 |
60 |
0.096 |
2.44 |
0096 |
|
0.218 |
5.54 |
0.156 |
3.96 |
66 |
0.192 |
4.88 |
0192 |
|
0.218 |
5.54 |
0.156 |
3.96 |
78 |
0.25 |
6.35 |
0250 |
√ |
0.204 |
5.18 |
0.14 |
3.56 |
81 |
0.384 |
9.75 |
0384 |
|
0.218 |
5.54 |
0.159 |
4.04 |
86 |
*Listed efficiency are theoretical values based on Kerkote
® TFE coated lead screws.
Shaded areas have been translated from their designed inch or mm dimension to an equivalent mm or inch dimension.
1/4" (6 mm) Diameter Lead Screw. Diameter Code 025
Lead |
Lead Code |
Left Hand Avail. |
Outside Diameter (For Reference) |
Root Diameter (For Reference) |
Efficiency %* |
in |
mm |
|
|
in |
mm |
in |
mm |
|
0.024 |
0.61 |
0024 |
|
0.25 |
6.35 |
0.218 |
5.54 |
28 |
0.025 |
0.64 |
0025 |
|
0.25 |
6.35 |
0.214 |
5.44 |
30 |
0.03125 |
0.79 |
0031 |
|
0.25 |
6.35 |
0.208 |
5.28 |
34 |
0.039 |
1 |
0039 |
|
0.25 |
6.35 |
0.19 |
4.83 |
40 |
0.048 |
1.22 |
0048 |
|
0.25 |
6.35 |
0.19 |
4.83 |
45 |
0.05 |
1.27 |
0050 |
√ |
0.25 |
6.35 |
0.191 |
4.85 |
46 |
0.059 |
1.5 |
0059 |
|
0.25 |
6.35 |
0.172 |
4.37 |
52 |
0.0625 |
1.59 |
0063 |
|
0.25 |
6.35 |
0.17 |
4.32 |
52 |
0.079 |
2 |
0079 |
|
0.25 |
6.35 |
0.17 |
4.32 |
59 |
0.096 |
2.44 |
0096 |
|
0.25 |
6.35 |
0.19 |
4.83 |
61 |
0.1 |
2.54 |
0100 |
|
0.25 |
6.35 |
0.19 |
4.83 |
62 |
0.118 |
3 |
0118 |
|
0.25 |
6.35 |
0.175 |
4.45 |
68 |
0.125 |
3.18 |
0125 |
|
0.25 |
6.35 |
0.19 |
4.83 |
67 |
0.197 |
5 |
0197 |
|
0.25 |
6.35 |
0.172 |
4.37 |
72 |
0.2 |
5.08 |
0200 |
|
0.25 |
6.35 |
0.17 |
4.32 |
65 |
0.25 |
6.35 |
0250 |
√ |
0.25 |
6.35 |
0.168 |
4.27 |
79 |
0.3125 |
7.94 |
0313 |
|
0.25 |
6.35 |
0.184 |
4.67 |
81 |
0.333 |
8.46 |
0333 |
|
0.25 |
6.35 |
0.17 |
4.32 |
82 |
0.394 |
10 |
0394 |
|
0.25 |
6.35 |
0.17 |
4.32 |
78 |
0.4 |
10.16 |
0400 |
|
0.25 |
6.35 |
0.17 |
4.32 |
84 |
0.5 |
12.7 |
0500 |
√ |
0.25 |
6.35 |
0.169 |
4.29 |
85 |
0.75 |
19.05 |
0750 |
|
0.25 |
6.35 |
0.17 |
4.32 |
86 |
1 |
25.4 |
1000 |
√ |
0.25 |
6.35 |
0.17 |
4.32 |
84 |
** Listed efficiency for Micro screws are theoretical values based on non-coated lead screws.
Shaded areas have been translated from their designed inch or mm dimension to an equivalent mm or inch dimension.
5/16" (8 mm) Diameter Lead Screw. Diameter Code 031
Lead |
Lead Code |
Left Hand Avail. |
Outside Diameter (For Reference) |
Root Diameter (For Reference) |
Efficiency %* |
in |
mm |
|
|
in |
mm |
in |
mm |
|
0.057 |
1.44 |
0057 |
|
0.315 |
8 |
0.243 |
6.71 |
43 |
0.0741 |
1.88 |
0074 |
|
0.312 |
7.92 |
0.211 |
5.36 |
51 |
0.111 |
2.82 |
0111 |
|
0.312 |
7.92 |
232 |
5.89 |
60 |
0.167 |
4.24 |
0167 |
|
0.312 |
7.92 |
0.211 |
5.36 |
69 |
0.25 |
6.35 |
0250 |
|
0.312 |
7.92 |
0.234 |
5.94 |
76 |
0.5 |
12.7 |
0500 |
√ |
0.312 |
7.92 |
0.232 |
5.89 |
83 |
0.8 |
20.32 |
0800 |
|
0.306 |
7.77 |
0.243 |
6.17 |
86 |
** Listed efficiency for Micro screws are theoretical values based on non-coated lead screws.
Shaded areas have been translated from their designed inch or mm dimension to an equivalent mm or inch dimension.
3/8" (10 mm) Diameter Lead Screw. Diameter Code 037
Lead |
Lead Code |
Left Hand Avail. |
Outside Diameter (For Reference) |
Root Diameter (For Reference) |
Efficiency %* |
in |
mm |
|
|
in |
mm |
in |
mm |
|
0.025 |
0.64 |
0025 |
|
0.375 |
9.53 |
0.337 |
8.56 |
21 |
0.039 |
1 |
0039 |
|
0.394 |
10.01 |
0.35 |
8.89 |
28 |
0.04167 |
1.06 |
0042 |
|
0.375 |
9.53 |
0.32 |
8.13 |
34 |
0.05 |
1.27 |
0050 |
√ |
0.375 |
9.53 |
0.301 |
7.65 |
36 |
0.055 |
1.4 |
0055 |
|
0.375 |
9.53 |
0.303 |
7.7 |
38 |
0.059 |
1.5 |
0059 |
√ |
0.389 |
9.88 |
0.313 |
7.95 |
38 |
0.0625 |
1.59 |
0063 |
√ |
0.375 |
9.53 |
0.295 |
7.49 |
41 |
0.068 |
1.73 |
0068 |
|
0.388 |
9.86 |
0.295 |
7.49 |
42 |
0.079 |
2 |
0079 |
|
0.375 |
9.53 |
0.264 |
6.71 |
47 |
0.0833 |
2.12 |
0083 |
|
0.375 |
9.53 |
0.293 |
7.44 |
48 |
0.1 |
2.54 |
0100 |
√ |
0.375 |
9.53 |
0.266 |
6.76 |
53 |
0.125 |
3.18 |
0125 |
|
0.375 |
9.53 |
0.295 |
7.49 |
59 |
0.157 |
4 |
0157 |
|
0.375 |
9.53 |
0.274 |
6.96 |
65 |
0.1667 |
4.23 |
0167 |
|
0.371 |
9.42 |
0.261 |
6.63 |
61 |
0.197 |
5 |
0197 |
|
0.375 |
9.53 |
0.266 |
6.76 |
69 |
0.2 |
5.08 |
0200 |
√ |
0.375 |
9.53 |
0.266 |
6.76 |
69 |
0.25 |
6.35 |
0250 |
|
0.375 |
9.53 |
0.268 |
6.81 |
70 |
0.3 |
7.62 |
0300 |
|
0.375 |
9.53 |
0.255 |
6.48 |
76 |
0.333 |
8.46 |
0333 |
|
0.375 |
9.53 |
0.245 |
6.22 |
78 |
0.363 |
9.22 |
0363 |
√ |
0.375 |
9.53 |
0.26 |
6.6 |
79 |
0.375 |
9.53 |
0375 |
|
0.375 |
9.53 |
0.265 |
6.73 |
79 |
0.394 |
10 |
0394 |
|
0.375 |
9.53 |
0.26 |
6.6 |
79 |
0.4 |
10.16 |
0400 |
|
0.375 |
9.53 |
0.293 |
7.44 |
79 |
0.472 |
12 |
0472 |
|
0.388 |
9.86 |
0.287 |
7.29 |
82 |
0.5 |
12.7 |
0500 |
√ |
0.388 |
9.86 |
0.265 |
6.73 |
81 |
0.667 |
16.94 |
0667 |
|
0.375 |
9.53 |
0.273 |
6.93 |
83 |
0.75 |
19.05 |
0750 |
|
0.388 |
9.86 |
0.273 |
6.93 |
84 |
0.984 |
25 |
0984 |
|
0.375 |
9.53 |
0.262 |
6.65 |
84 |
1 |
25.4 |
1000 |
|
0.383 |
9.73 |
0.254 |
6.45 |
84 |
1.2 |
30.48 |
1200 |
√ |
0.383 |
9.73 |
0.254 |
6.45 |
84 |
1.25 |
31.75 |
1250 |
|
0.375 |
9.53 |
0.278 |
7.06 |
84 |
1.5 |
38.1 |
1500 |
|
0.375 |
9.53 |
0.264 |
6.71 |
83 |
** Listed efficiency for Micro screws are theoretical values based on non-coated lead screws.
Shaded areas have been translated from their designed inch or mm dimension to an equivalent mm or inch dimension.