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.
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Unit of Measure

Thread Size x Pitch

 N/A M3 x 0.5

Thread Code

 N/A M3

A (Shank) Max.

 N/A 0.61 mm a1384.jpg
Min. Sheet Thickness1 N/A 0.64 mm

Hole Size in Sheet + 0.08

 N/A 4.24 mm

C Max.

 N/A 4.22 mm

E ± 0.25

 N/A 5.60 mm

T ± 0.25

 N/A 1.40 mm

Min. Dist. Hole C/L to Edge

 N/A 5.1 mm

For Use in Sheet Hardness

 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.