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  • Flush-head studs - FH, FH4, FHA, FHP, FHS
  • FH_Installed
  • Self-Clinching Threaded Studs - Type FH/FHS/FHA 2
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.
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Thread Size x Pitch

L - Length ± 0.4 (mm)

Fastener Material

  • 300 Series Stainless Steel
  • Aluminum (Plain Finish)
  • Harden & Temper Low Carbon Steel
  • Hardened Carbon Steel
  • Heat-Treated Carbon Steel

Standard Finish

  • No Finish
  • Passivated and/or Tested Per ASTM A380
  • Zinc Plated per ASTM B633, SC1 (5µm), Type III Colorless
  • Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
  • Zinc Plated, 5µm, Colorless
  • Zinc Plus Clear Chromate

Item #

Thread Size x Pitch

Hole Size in Sheet + 0.08

L - Length ± 0.4

H ± 0.4

Fastener Material

Standard Finish

Optional Finish

CAD

N/A M2.5 x 0.45 N/A 2.5 mm N/A 6 mm N/A 4.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3 x 0.5 N/A 3 mm N/A 6 mm N/A 4.6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3.5 x 0.6 N/A 3.50 mm N/A 6 mm N/A 5.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M4 x 0.7 N/A 4 mm N/A 6 mm N/A 5.9 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M2.5 x 0.45 N/A 2.5 mm N/A 8 mm N/A 4.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3 x 0.5 N/A 3 mm N/A 8 mm N/A 4.6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3.5 x 0.6 N/A 3.50 mm N/A 8 mm N/A 5.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M4 x 0.7 N/A 4 mm N/A 8 mm N/A 5.9 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M5 x 0.8 N/A 5 mm N/A 8 mm N/A 6.5 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M2.5 x 0.45 N/A 2.5 mm N/A 10 mm N/A 4.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3 x 0.5 N/A 3 mm N/A 10 mm N/A 4.6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3.5 x 0.6 N/A 3.50 mm N/A 10 mm N/A 5.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M4 x 0.7 N/A 4 mm N/A 10 mm N/A 5.9 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M5 x 0.8 N/A 5 mm N/A 10 mm N/A 6.5 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M6 x 1 N/A 6 mm N/A 10 mm N/A 8.2 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M2.5 x 0.45 N/A 2.5 mm N/A 12.00 mm N/A 4.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3 x 0.5 N/A 3 mm N/A 12.00 mm N/A 4.6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3.5 x 0.6 N/A 3.50 mm N/A 12.00 mm N/A 5.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M4 x 0.7 N/A 4 mm N/A 12.00 mm N/A 5.9 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M5 x 0.8 N/A 5 mm N/A 12.00 mm N/A 6.5 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M6 x 1 N/A 6 mm N/A 12.00 mm N/A 8.2 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M8 x 1.25 N/A 8 mm N/A 12.00 mm N/A 9.6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M2.5 x 0.45 N/A 2.5 mm N/A 15 mm N/A 4.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3 x 0.5 N/A 3 mm N/A 15 mm N/A 4.6 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
N/A M3.5 x 0.6 N/A 3.50 mm N/A 15 mm N/A 5.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A N/A CAD Icon (for items table)
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