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  • Installs into thin, harder, high strength steel materials (high strength steel sheets at 975MPA maximum ultimate tensile)
  • Allows overall weight reduction for all vehicles
  • Provides lower installed cost
  • Unplated threads may be oversized sized as permitted by thread standards to accept minimum plating thickness of .00020”/.0051 mm
Compare to other thin sheet fastening devices:
  • Addresses environmental concerns
  • Smaller outer diameter
  • Lighter weight
  • Flush on reverse side of panel
  • Close to edge of panel mounting
  • No embossing required
  • Hardened nut material provides stronger thread strength
  • Can be installed automatically using press or in-die technology
Unit of Measure

Thread Size

 N/A .375-16 (3/8-16)

Thread Code

 N/A 0616

Shank Code

 N/A 1

A (Shank) Max.

 N/A .087 in Type-S-Hard-Panel-Nuts_2.jpg
Min. Sheet Thickness1 N/A .090 in

Hole Size in Sheet + .003 - .000

 N/A .500 in

C Max.

 N/A .499 in

E ± .010

 N/A .623 in

T ± .010

 N/A .270 in

Min. Dist. Hole C/L to Edge

 N/A .44 in
For Use in Sheet Hardness2 N/A HRC 30 / HB 277 or Less

Thread Specification

 N/A Internal, ASME B1.1, 2B / ASME B1.13M, 6H

Fastener Material

 N/A Hardened Alloy Steel
Standard Finish3 N/A No Finish (with Rust Preventative Oil)

Optional Finish

 N/A Consult technical support for recommended optional finishes.

CAD Supplier

 N/A PennEngineering® (PEM®)
  • 1 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
  • 2 HRC - Hardness Rockwell "C" Scale. HB - Hardness Brinell.
  • 3 Unplated threads are sized to accept a basic go gauge after .00025 in plating.