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Type CLA aluminum nuts are recommended for use in aluminum sheet with a hardness of HRB 50 or less on the Rockwell “B” scale.
Unplated threads are sized to accept a basic go gauge after .00025” plating.
Unplated threads are sized to accept a basic go gauge after .00025” plating.
Unit of Measure
Thread Size |
N/A .086-56 (#2-56) |
Thread Code |
N/A 256 |
Shank Code |
N/A 1 |
A (Shank) Max. |
N/A
0.038 in
Loading zoom |
Min. Sheet Thickness1 | N/A .040 in |
Hole Size in Sheet + .003 - .000 |
N/A .166 in |
C Max. |
N/A .165 in |
E ± .010 |
N/A .250 in |
T ± .010 |
N/A .070 in |
Min. Dist. Hole C/L to Edge2 | N/A .19 in |
For Use in Sheet Hardness3 | N/A HRB 50 / HB 82 or less |
Thread Specification |
N/A Internal, ASME B1.1, 2B |
Fastener Material |
N/A Aluminum |
Standard Finish |
N/A None |
CAD Supplier |
N/A PennEngineering® (PEM®) |
- 1 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
- 2 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
- 3 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.