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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 for sheet thickness of .040” and 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
Unit of Measure

Pin Dia. Code

N/A 084

Length Code

N/A 4

Min. Sheet Thickness

N/A .040 in

Hole Size in Sheet + .003 - .000

N/A .099 in
P - Nominal Pin Diameter ± .0021 N/A .084 in

L - Length ± .015

N/A .250 in

H ± .015

N/A .160 in
S Max.2 N/A .085 in

Min. Dist. Hole C/L to Edge

N/A .220 in

For Use in Sheet Hardness

N/A HRB 80 / HB 150 or Less

Fastener Material

N/A Heat-Treated Carbon Steel

Standard Finish

N/A Zinc Plated, 5µm, Colorless

CAD Supplier

N/A PennEngineering® (PEM®)
  • 1 Other pin diameters can be specified.
  • 2 Pin diameter may exceed max. in this region.