• 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 0.375-16 (3/8-16)

Thread Code

N/A 0616

Shank Code

N/A 1

A (Shank) Max.

N/A 0.087 in Type-S-Hard-Panel-Nuts_2.jpg
Min. Sheet Thickness1 N/A 0.090 in

Hole Size in Sheet + .003 - .000

N/A 0.500 in

C Max.

N/A 0.499 in

E ± .010

N/A 0.623 in

T ± .010

N/A 0.270 in

Min. Dist. Hole C/L to Edge

N/A 0.44 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 Finish

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®)

On Hand

N/A {0}
  • 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.