FH-440-14ZI

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

FH-440-14ZI

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
440
Thread Size
.112-40 (#4-40), #4-40
Thread Specification
2A, ANSI B1.1, External
Fastener Material
Carbon Steel, Heat-Treated Carbon Steel
Standard Finish
colorless, SC1 (5µm), Type III, Zinc plated per ASTM B633, Zinc plus Clear Chromate
For Use in Sheet Hardness
HRB 80 / HB 150 or less
Length Code
14
Product Category
Self-Clinching Threaded Studs – Type FH/FHS/FHA
CAD Supplier
PennEngineering® (PEM®)
CADPartID
103708
PEM Product Family
FH
Unit (Metric/Unified)
Unified
H ± .015_in
.176in
Hole Size in Sheet + .003 – .000_in
.111in
L Len Pm 015in Or 4mm
.875in, 0.875in
Max. Hole in Attached Parts_in
.135in
Min. Dist. Hole C/L to Edge_in
.219in
Min. Sheet Thickness_in
.040in
S Max._in
.085in

Resources

Installation & Performance Data

fh-fh-fhs-studs-unified
TYPE THREAD CODE REC. NUT TIGHTENING TORQUE (in. lbs.) TEST SHEET THICKNESS & MATERIAL SHEET HARDNESS HRB INSTALLATION (lbs.) PUSHOUT (lbs.) TORQUE-OUT (in. lbs.) PULL THRU (lbs.)
FH 440 8.7 .064" Aluminum 29 3800 170 10 650
FH 440 8.7 .060" Steel 59 4300 275 10 650

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