FH-M3.5-25ZC

Self-Clinching Threaded Studs – Type FH/FHS/FHA

FH-M3.5-25ZC

Self-Clinching Threaded Studs – Type FH/FHS/FHA

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.

FH (flush-head) studs are available in aluminum, steel, or stainless steel. They are also available unthreaded on special order.- Flush-head in designated minimum sheet thickness or greater.

  • Type FH is recommended for use in steel or aluminum sheets HRB (Rockwell “B” scale) 80 or less and HB (Hardness Brinell) 150 or less.
  • Type FHS is recommended for use in steel or aluminum sheets HRB (Rockwell “B” scale) 70 or less and HB (Hardness Brinell) 125 or less.
  • Type FHA is recommended for use in aluminum sheets HRB (Rockwell “B” scale) 50 or less and HB (Hardness Brinell) 82 or less.

Specifications

Thread Code
M3.5
Thread Size
M3.5 x 0.6
Thread Size X Pitch
M3.5 x 0.6
Thread Specification
6g, ASME B1.13M, External
Fastener Material
Carbon Steel, Heat-Treated Carbon Steel
Optional Finish
SC1 (5µm), Type II, yellow, Zinc plated per ASTM B633
For Use in Sheet Hardness
HRB 80 / HB 150 or less
Length Code
25
Product Category
Self-Clinching Threaded Studs – Type FH/FHS/FHA
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103709
PEM Product Family
FH
Unit (Metric/Unified)
Metric
H ± 0.4_mm
5.30mm
Hole Size in Sheet + 0.08_mm
3.5mm
L Len Pm 015in Or 4mm
25mm
Max. Hole in Attached Parts_mm
4.10mm
Min. Dist. Hole C/L to Edge_mm
6.40mm
Min. Sheet Thickness_mm
1mm
S Max._mm
2.25mm

Resources

Installation & Performance Data

fh-fh-fhs-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)
FH M3.5 1.6 1.6 mm Aluminum 29 15.6 800 1.7 3780
FH M3.5 1.6 1.5 mm Steel 59 22.3 1335 2.8 3780

Inventory

Distributor Quantity Contact Phone Address Locations

Site Search

What are you looking for?

You can search our website in different ways. You can search for inventory or product specifications using the full part number or partial part number. You don’t even need to type the words “inventory” or "product spec"!
Examples of what to type:
Full or partial part number: “S-632-1ZI”, “CLS 632” Type: “CLS”, “FH”, “SO” Website content: “Self-clinching Nuts” or “PEM studs”