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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.
Unit of Measure

Thread Size x Pitch

 M3.5 x 0.6

Thread Code

 M3.5
Shank Code1 2

A (Shank) Max.

 1.38 mm
a1383_1.jpg
Min. Sheet Thickness2 1.4 mm

Hole Size in Sheet + 0.08

 5.41 mm

C Max.

 5.38 mm

E ± 0.25

 7.11 mm

T ± 0.25

 2 mm
Min. Dist. Hole C/L to Edge3 6.9 mm
For Use in Sheet Hardness4 HRB 50 / HB 82 or Less

Thread Specification

 Internal, ASME B1.13M, 6H

Fastener Material

 Aluminum

Standard Finish

 None

Inventory
  • 1 Other shank and screw lengths available.
  • 2 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
  • 3 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 4 HRB - Hardness Rockwell “B” Scale. HB - Hardness Brinell.