Hi-Tech Fasteners Inc.
Hi-Tech Fasteners, Inc.
4940 Winchester Boulevard
Frederick, Maryland 21703-7400

Toll Free: 800.466.1940
Tel: 301.831.1277
Fax: 301.831.8296
Email: sales@hitechfasteners.com
Website: www.hitechfasteners.com
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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

Specifications

Thread Size

 N/A .250-20 (1/4-20)

Thread Code

 N/A 0420
Shank Code1 N/A 1

A (Shank) Max.

 N/A .054 in Type-S-Hard-Panel-Nuts_2_1.jpg
Min. Sheet Thickness2 N/A .056 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.