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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.

TFH (non-flush) Studs are for sheets as thin as .020 inches. They may also be used in thicker sheets where flush head studs are not required. TFH studs are installed in the sheets in the same manner as flush-head studs; however, different punches and anvils are required. When installed, the TFH stud will be securely locked into the thin sheet with ample torque-out and pushout resistances. The stud head will not be flush but will project above the sheet surface approximately .025 in.
  • Non-flush for sheets as thin as .020”.
  • Type TFH is recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 80 or less and HB (Hardness Brinell) 150 or less.
  • Type TFHS is recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 70 or less and HB (Hardness Brinell) 125 or less.
Thin sheet studs, non flush - TFH, TFHS
Non-Flush Studs - Types TFH, TFHS 2
Unit of Measure
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Part #

Thread Size

Hole Size in Sheet + .003 - .000

L - Length ± .015

H ± .015

Fastener Material

Standard Finish

Optional Finish

CAD

TFH-256-4ZI N/A .086-56 (#2-56) N/A .085 in N/A .250 in N/A .141 in 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)
TFH-440-4ZI N/A .112-40 (#4-40) N/A .111 in N/A .250 in N/A .176 in 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)
TFH-632-4ZI N/A .138-32 (#6-32) N/A .137 in N/A .250 in N/A .203 in 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)
TFH-832-4ZI N/A .164-32 (#8-32) N/A .163 in N/A .250 in N/A .234 in 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)
TFH-256-5ZI N/A .086-56 (#2-56) N/A .085 in N/A .312 in N/A .141 in 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)
TFH-440-5ZI N/A .112-40 (#4-40) N/A .111 in N/A .312 in N/A .176 in 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)
TFH-632-5ZI N/A .138-32 (#6-32) N/A .137 in N/A .312 in N/A .203 in 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)
TFH-832-5ZI N/A .164-32 (#8-32) N/A .163 in N/A .312 in N/A .234 in 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)
TFH-024-5ZI N/A .190-24 (#10-24) N/A .189 in N/A .312 in N/A .250 in 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)
TFH-032-5ZI N/A .190-32 (#10-32) N/A .189 in N/A .312 in N/A .250 in 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)
TFH-256-6ZI N/A .086-56 (#2-56) N/A .085 in N/A .375 in N/A .141 in 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)
TFH-440-6ZI N/A .112-40 (#4-40) N/A .111 in N/A .375 in N/A .176 in 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)
TFH-632-6ZI N/A .138-32 (#6-32) N/A .137 in N/A .375 in N/A .203 in 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)
TFH-832-6ZI N/A .164-32 (#8-32) N/A .163 in N/A .375 in N/A .234 in 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)
TFH-024-6ZI N/A .190-24 (#10-24) N/A .189 in N/A .375 in N/A .250 in 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)
TFH-032-6ZI N/A .190-32 (#10-32) N/A .189 in N/A .375 in N/A .250 in 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)
TFH-256-8ZI N/A .086-56 (#2-56) N/A .085 in N/A .500 in N/A .141 in 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)
TFH-440-8ZI N/A .112-40 (#4-40) N/A .111 in N/A .500 in N/A .176 in 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)
TFH-632-8ZI N/A .138-32 (#6-32) N/A .137 in N/A .500 in N/A .203 in 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)
TFH-832-8ZI N/A .164-32 (#8-32) N/A .163 in N/A .500 in N/A .234 in 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)
TFH-024-8ZI N/A .190-24 (#10-24) N/A .189 in N/A .500 in N/A .250 in 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)
TFH-032-8ZI N/A .190-32 (#10-32) N/A .189 in N/A .500 in N/A .250 in 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)
TFH-256-10ZI N/A .086-56 (#2-56) N/A .085 in N/A .625 in N/A .141 in 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)
TFH-440-10ZI N/A .112-40 (#4-40) N/A .111 in N/A .625 in N/A .176 in 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)
TFH-632-10ZI N/A .138-32 (#6-32) N/A .137 in N/A .625 in N/A .203 in 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)
Unit of Measure
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