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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

Specifications

Thread Size	N/A .112-40 (#4-40)
Thread Code	N/A 440
A (Shank) Max.	N/A .024 in
Min. Sheet Thickness	N/A .025 in
Hole Size in Sheet + .003 - .000	N/A .166 in
C Max.	N/A .165 in
E ± .010	N/A .220 in
T ± .010	N/A .065 in
Min. Dist. Hole C/L to Edge¹	N/A .20 in
For Use in Sheet Hardness	N/A HRB 90 / HB 192 or Less
Thread Specification	N/A Internal, ASME B1.1, 2B
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®)
Inventory	N/A {0}

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