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Type SMPP self-clinching nuts are for installation into ultra-thin sheets.
  • Installs into stainless steel sheets as thin as .025”.
  • 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

 .086-56 (#2-56)

Thread Code

 256

A (Shank) Max.

 .024 in
a1384_1.jpg

Min. Sheet Thickness

 .025 in

Hole Size in Sheet + .003 - .000

 .136 in

C Max.

 .135 in

E ± .010

 .220 in

T ± .010

 .065 in
Min. Dist. Hole C/L to Edge1 .160 in

For Use in Sheet Hardness

 HRB 90 / HB 192 or Less

Thread Specification

 Internal, ASME B1.1, 2B

Fastener Material

 Age hardened A286 Stainless Steel (non-magnetic)

Standard Finish

 Passivated and/or tested per ASTM A380

CAD Supplier

 PennEngineering® (PEM®)

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  • 1 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.