Search our PEM catalog here, or view other manufacturers.

  1. Manufacturers
  2. Services
  3. About Us
  4. What’s New
  5. Careers
  6. Contact
  7. Search

Product Catalog

Tel 800.466.1940
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Request CAD files
Request Information Add to CAD Cart
  • 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 .250-20 (1/4-20)

Thread Code

 N/A 0420
Shank Code1 N/A 2

A (Shank) Max.

 N/A .087 in Type-S-Hard-Panel-Nuts_2_1.jpg
Min. Sheet Thickness2 N/A .090 in

Hole Size in Sheet + .003 - .000

 N/A .344 in

C Max.

 N/A .343 in

E ± .010

 N/A .440 in

T ± .010

 N/A .170 in
Min. Dist. Hole C/L to Edge3 N/A .34 in
For Use in Sheet Hardness4 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 Finish5 N/A No Finish (with Rust Preventative Oil)
Optional Finish6 N/A Consult technical support for recommended optional finishes.

CAD Supplier

 N/A PennEngineering® (PEM®)

Inventory

 N/A {0}
  • 1 Other shank and screw lengths available.
  • 2 For maximum performance, we recommend that you use the maximum shank length for your sheet thickness.
  • 3 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 4 HRC - Hardness Rockwell "C" Scale. HB - Hardness Brinell.
  • 5 Unplated threads are sized to accept a basic go gauge after .00025 in plating.
  • 6 “BL” suffix will be added to part number to designate DuraBlack™ finish.