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All Categories > PEM® Brand Fasteners for Metal Sheets and Panels > Nuts for Sheet Metal > Nuts (all) for Installing into Stainless Steel – Types A4, LA4, SP, F4, SMPP > Nuts (all) for Installing into Stainless Steel – Type SP, SMPP > Self-Clinching Nuts - Types SP, SMPP - Metric > Part # SMPP-M3.5  

Part # SMPP-M3.5, Nuts for Ultra-Thin Sheets - Type SMPP - Metric

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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.




 Specifications   

Thread Size x Pitch
M3.5 x 0.6

Thread Code
M3.5

A (Shank) Max.

 View
0.61 mm

Rec. Min. Sheet Thickness1
0.64 mm

Hole Size in Sheet + 0.08
4.75 mm

C Max.
4.73 mm

E ± 0.25
6.4 mm

T ± 0.25
1.4 mm

Min. Dist. Hole C/L to Edge2
5.5 mm

For Use in Sheet Hardness3
HRB 90 / HB 192 or Less

Thread Specification
Internal, ASME B1.13M, 6H

Fastener Material
Age hardened A286 Stainless Steel (non-magnetic)

Standard Finish
Passivated and/or tested per ASTM A380

CAD Supplier
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.


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·  SMPP Installation



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PEMSERTER® Tooling Selector

Type SMPP™ Self-clinching Nuts

Tightening Torque