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 thinner, harder, high strength steel materials (high strength steel sheets up to 700 MPa maximum ultimate tensile)
  • Allows overall weight reduction for all vehicles
  • Provides lower installed cost
Compare to other thin sheet fastening devices:
  • Addresses environmental concerns
  • Lighter weight
  • Close to edge of panel mounting
  • No embossing required
  • Hardened stud 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

Length Code

 N/A 12

Min. Sheet Thickness

 N/A .040 in

Hole Size in Sheet + .005 - .000

 N/A .250 in
L - Length ± .0151 N/A .750 in Type-HFL-Hard-Panel-Studs_2_1.jpg

H ± .01

 N/A .462 in
S Max.2 N/A .118 in

T Max.

 N/A .060 in

Max. Hole in Attached Parts

 N/A .340 in
Min. Dist. Hole C/L to Edge3 N/A .470 in

Tensile strength

 N/A 120 ksi
For Use in Sheet Hardness4 N/A HRB 96 / HB 216 or Less

Thread Specification

 N/A External, ASME B1.1, 2A / ASME B1.13M, 6g

Fastener Material

 N/A Heat-Treated Alloy Steel

Standard Finish

 N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless

CAD Supplier

 N/A PennEngineering® (PEM®)

Inventory

 N/A {0}
  • 1 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”
  • 2 Threads are gageable to within 2 pitches of the "S" Max. dimension. A class 3B/5H maximum material commercial nut shall pass up to the "S" Max. dimension.
  • 3 To minimize sheet distortion and maximize product performance, use a centerline-to-edge value greater or equal to the value specified.
  • 4 HRB - Hardness Rockwell "B" Scale. HB - Hardness Brinell