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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
Type SH™ Hard Panel Nuts
Type SH™ Hard Panel Nuts_2
Unit of Measure
Items Type SH™ Hard Panel Nuts
SH-0420-1X
Type SH™ Hard Panel Nuts - Unified
Type SH™ Hard Panel Nuts
SH-0420-2X
Type SH™ Hard Panel Nuts - Unified
Type SH™ Hard Panel Nuts
SH-0518-1X
Type SH™ Hard Panel Nuts - Unified
Type SH™ Hard Panel Nuts
SH-0518-2X
Type SH™ Hard Panel Nuts - Unified
Type SH™ Hard Panel Nuts
SH-0616-1X
Type SH™ Hard Panel Nuts - Unified
Description N/A
  • 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
Thread Size N/A .250-20 (1/4-20) N/A .250-20 (1/4-20) N/A .313-18 (5/16-18) N/A .313-18 (5/16-18) N/A .375-16 (3/8-16)
Thread Code N/A 0420 N/A 0420 N/A 0518 N/A 0518 N/A 0616
Shank Code N/A 1 N/A 2 N/A 1 N/A 2 N/A 1
A (Shank) Max. N/A .054 in Type-S-Hard-Panel-Nuts_2.jpg N/A .087 in Type-S-Hard-Panel-Nuts_2.jpg N/A .054 in Type-S-Hard-Panel-Nuts_2.jpg N/A .087 in Type-S-Hard-Panel-Nuts_2.jpg N/A .087 in Type-S-Hard-Panel-Nuts_2.jpg
Min. Sheet Thickness1 N/A .056 in N/A .090 in N/A .056 in N/A .090 in N/A .090 in
Hole Size in Sheet + .003 - .000 N/A .344 in N/A .344 in N/A .413 in N/A .413 in N/A .500 in
C Max. N/A .343 in N/A .343 in N/A .412 in N/A .412 in N/A .499 in
E ± .010 N/A .440 in N/A .440 in N/A .500 in N/A .500 in N/A .623 in
T ± .010 N/A .170 in N/A .170 in N/A .230 in N/A .230 in N/A .270 in
Min. Dist. Hole C/L to Edge N/A .34 in N/A .34 in N/A .38 in N/A .38 in 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.