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Type SP, PEM 300® nuts provide strong load-bearing threads in stainless steel sheets as thin as .030”.

Type SP is recommended for use in stainless steel sheets HRB (Rockwell "B" scale) 90 or less and HB (Hardness Brinell) 185 or less.
Unit of Measure

Thread Size

 N/A .112-40 (#4-40)

Thread Code

 N/A 440

Shank Code

 N/A 0

A (Shank) Max.

 N/A .030 in Self-Clinching-Nuts---Types-S--SS--CLS--CLSS--SP-2.png
Rec. Min. Sheet Thickness1 N/A .030 in

Hole Size in Sheet + .003 - .000

 N/A .166 in

C Max.

 N/A .165 in

E ± .010

 N/A .250 in

T ± .010

 N/A .070 in
Min. Dist. Hole C/L to Edge2 N/A .19 in
For Use in Sheet Hardness3 N/A HRB 90 / HB 185 or Less

Thread Specification

 N/A Internal, ASME B1.1, 2B

Fastener Material

 N/A Age Hardened A286 Stainless Steel

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.