HFE-0420-12ZC

High-Strength Studs for Thin Sheets – Type HFE

HFE-0420-12ZC

High-Strength Studs for Thin Sheets – Type HFE

PEM® self-clinching studs are installed by placing them in properly sized holes in the sheets and squeezing into place with any standard press. The squeezing action embeds the head of the stud into the sheet. The metal displaced by the head flows smoothly and evenly around the ribs and into the annular groove – creating a flushhead assembly and securely locking the stud into the sheet with high torque-out and pushout resistances.

HFE (heavy-duty) Studs are designed with an enlarged head diameter which projects above the sheet material and provides maximum pull through in sheets as thin as .040”.- Enlarged head diameter provides high-strength in sheets as thin as .040”.

  • Recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 85 or less and HB (Hardness Brinell) 165 or less.

Specifications

Thread Code
420
Thread Size
1/4-20
Thread Specification
2A, ANSI B1.1, External
Fastener Material
Carbon Steel
Optional Finish
SC1 (5µm), Type II, yellow, Zinc plated per ASTM B633
For Use in Sheet Hardness
HRB 85 / HB 165 or Less
Length Code
12
Thread Strength_ksi
120
Product Category
High-Strength Studs for Thin Sheets – Type HFE
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103710
Application Type
Aerospace, Automotive, Commercial Vehicles, Industrial, Manufacturing & Sheet Metal Fabrication
Base Panel Material
Aluminum, Steel
Brand
PEM
Fastener Characteristics
Threaded External
Industry
Automotive, Datacom & Telecom, Defense, Electric Vehicles, Industrial & Commercial
Installation Equipment/Method
C-Frame Automatic Feed, C-Frame Manual Feed, In-Die
PEM Product Family
FH
Product Type
Studs
Technology Type
Self-Clinching
Unit (Metric/Unified)
Unified
H ± .01_in
0.462in
Hole Size in Sheet + .005 – .000_in
0.25in
L Len Pm 015in Or 4mm
0.75in
Max. Hole in Attached Parts_in
0.34in
Min. Dist. Hole C/L to Edge_in
0.47in
Min. Sheet Thickness_in
0.04in
S Max._in
0.118in
T Max._in
0.06in

Resources

Installation & Performance Data

fh-hfe-studs-unified
TYPE THREAD CODE REC. NUT TIGHTENING TORQUE (ft. lbs.) TEST SHEET THICKNESS & MATERIAL SHEET HARDNESS HRB INSTALLATION (lbs.) PUSHOUT (lbs.) TORQUE-OUT (in. lbs.) TENSILE STRENGTH (lbs.) PULL THRU (lbs.) TEST BUSHING HOLE SIZE FOR PULL THRU TESTS (in.)
HFE 0420 8 .040" Aluminum 27 8000 180 120 3820 3200 .335
HFE 0420 9 .040" Cold-rolled Steel 67 13500 340 130 3820 3600 .335

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