FH-0420-24ZC

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

FH-0420-24ZC

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
0420
Thread Size
.250-20 (1/4-20), 1/4-20
Thread Specification
2A, ANSI B1.1, 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
24
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
.337in
Hole Size in Sheet + .003 – .000_in
.249in
L Len Pm 015in Or 4mm
1.50in, 1.5in
Max. Hole in Attached Parts_in
.270in
Min. Dist. Hole C/L to Edge_in
.312in
Min. Sheet Thickness_in
.062in
S Max._in
.135in

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 0420 69 .093" Aluminum 28 6500 310 65 2300
FH 0420 77 .088" Steel 46 9500 575 100 2550

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”