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Type SMPP self-clinching nuts are for installation into ultra-thin sheets.
  • Installs into stainless steel sheets as thin as 0.64 mm.
  • Corrosion resistance similar to 300 series stainless steel.
  • Reduced outer dimensions and thinner sheet capabilities compared to type SP thread sizes.
  • Recommended for use in stainless steel sheets HRB 90 / HB 192 or less.
Unit of Measure

Thread Size x Pitch

 N/A M2.5 x 0.45

Thread Code

 N/A M2.5

A (Shank) Max.

 N/A 0.61 mm Self-Clinching-Nuts---Types-S--SS--CLS--CLSS--SP-2.png
Rec. Min. Sheet Thickness1 N/A 0.64 mm

Hole Size in Sheet + 0.08

 N/A 3.8 mm

C Max.

 N/A 3.79 mm

E ± 0.25

 N/A 5.6 mm

T ± 0.25

 N/A 1.4 mm
Min. Dist. Hole C/L to Edge2 N/A 3.9 mm
For Use in Sheet Hardness3 N/A HRB 90 / HB 192 or Less

Thread Specification

 N/A Internal, ASME B1.13M, 6H

Fastener Material

 N/A Age hardened A286 Stainless Steel (non-magnetic)

Standard Finish

 N/A Passivated and/or tested per ASTM A380

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.