PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
Print Back
Self-clinching nuts are installed by placing them in properly sized holes in sheets and applying a parallel squeezing force to the head of the nut. The sheet metal surrounding the head cold flows into an undercut thereby making the fastener an integral part of the sheet. A serrated clinching ring prevents the fastener from rotating after installation.

Type S, SS, CLS, and CLSS nuts provide load-bearing threads in thin sheets with high pushout and torque-out resistance.

Type SP, PEM 300® nuts provide strong load-bearing threads in stainless steel sheets as thin as .030”.
Nuts - Types S, SS, CLS, CLSS,CLA,SP
Self-Clinching Nuts - Types S, SS, CLS, CLSS, SP 2
Unit of Measure
1 

Part #

Thread Size

A (Shank) Max.

Hole Size in Sheet + .003 - .000

E ± .010

Fastener Material

Standard Finish

CAD

SP-440-0 N/A .112-40 (#4-40) N/A .030 in N/A .166 in N/A .250 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-632-0 N/A .138-32 (#6-32) N/A .030 in N/A .1875 in N/A .280 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-832-0 N/A .164-32 (#8-32) N/A .030 in N/A .213 in N/A .310 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-032-0 N/A .190-32 (#10-32) N/A .030 in N/A .250 in N/A .340 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-0420-0 N/A .250-20 (1/4-20) N/A .045 in N/A .344 in N/A .440 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-440-1 N/A .112-40 (#4-40) N/A 0.038 in N/A .166 in N/A .250 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-632-1 N/A .138-32 (#6-32) N/A 0.038 in N/A .1875 in N/A .280 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-832-1 N/A .164-32 (#8-32) N/A 0.038 in N/A .213 in N/A .310 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-032-1 N/A .190-32 (#10-32) N/A 0.038 in N/A .250 in N/A .340 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-0420-1 N/A .250-20 (1/4-20) N/A .054 in N/A .344 in N/A .440 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-0518-1 N/A .313-18 (5/16-18) N/A .054 in N/A .413 in N/A .500 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-440-2 N/A .112-40 (#4-40) N/A .054 in N/A .166 in N/A .250 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-632-2 N/A .138-32 (#6-32) N/A .054 in N/A .1875 in N/A .280 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-832-2 N/A .164-32 (#8-32) N/A .054 in N/A .213 in N/A .310 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-032-2 N/A .190-32 (#10-32) N/A .054 in N/A .250 in N/A .340 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-0420-2 N/A .250-20 (1/4-20) N/A .087 in N/A .344 in N/A .440 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-0518-2 N/A .313-18 (5/16-18) N/A .087 in N/A .413 in N/A .500 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SP-0616-2 N/A .375-16 (3/8-16) N/A .120 in N/A .500 in N/A .560 in N/A Age Hardened A286 Stainless Steel N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SMPP-256 N/A .086-56 (#2-56) N/A .024 in N/A .136 in N/A .220 in N/A Age hardened A286 Stainless Steel (non-magnetic) N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SMPP-440 N/A .112-40 (#4-40) N/A .024 in N/A .166 in N/A .220 in N/A Age hardened A286 Stainless Steel (non-magnetic) N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
SMPP-632 N/A .138-32 (#6-32) N/A .024 in N/A .187 in N/A .252 in N/A Age hardened A286 Stainless Steel (non-magnetic) N/A Passivated and/or tested per ASTM A380 N/A CAD Icon (for items table)
Unit of Measure
1