FHLS-M3.5-15

Low-Displacement Head Studs – Types FHL, FHLS

FHLS-M3.5-15

Low-Displacement Head Studs – Types FHL, FHLS

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.

FHL (flush low-displacement head) Studs install closer to the edge of a sheet than PEM Types FH/FHS studs without causing that edge to bulge.- Installs closer to the edge of a sheet than PEM Type FH/FHS studs without causing that edge to bulge.

  • Flush-head for sheet thickness 1.00 mm and greater.
  • Type FHL is recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 80 or less and HB (Hardness Brinell) 150 or less.
  • Type FHLS is recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 70 or less and HB (Hardness Brinell) 125 or less.

Specifications

Thread Code
M3.5
Thread Size
M3.5 x 0.6
Thread Specification
6g, ASME B1.13M, External
Fastener Material
300 Series Stainless Steel
Material Code
S
Standard Finish
Passivated and/or tested
For Use in Sheet Hardness
HRB 70 / HB 125 or Less
Length Code
15
Product Category
Low-Displacement Head Studs – Types FHL, FHLS
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103709
Application Type
Aerospace, Automotive, Automotive Electronics, Commercial Vehicles, Datacom, Electric Vehicle Chargers, Electric Vehicles, Electronics, Industrial, Manufacturing & Sheet Metal Fabrication, Marine, Medical, Renewable Energy, Telecom
Base Panel Material
Aluminum, Steel
Brand
PEM
Fastener Characteristics
Close To Edge, Threaded External
Industry
Automotive, Automotive Electronics, Datacom & Telecom, Defense, Electric Vehicles, Industrial & Commercial, Medical
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)
Metric
H ± 0.4_mm
4.15mm
Hole Size in Sheet + 0.08_mm
3.5mm
L Len Pm 015in Or 4mm
15mm
Max. Hole in Attached Parts_mm
3.9mm
Min. Dist. Hole C/L to Edge_mm
3.8mm
Min. Sheet Thickness_mm
1mm
S Max._mm
2.3mm

Resources

Installation & Performance Data

fh-fhl-fhls-studs-metric
TYPE THREAD CODE REC. NUT TIGHTENING TORQUE (N•m) TEST SHEET THICKNESS & MATERIAL SHEET HARDNESS HRB INSTALLATION (kN) PUSHOUT (N) TORQUE-OUT (N•m) PULL THRU (N) PULL THRU TEST BUSHING HOLE SIZE (mm)
FHL, FHLS M3.5 0.51 1.2 mm Aluminum 33 4.4 290 0.76 1400 4
FHL, FHLS M3.5 1.03 1.1 mm Steel 54 6.6 500 1.75 2800 4

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