PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
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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.

FHL (flush low-displacement head) Studs install closer to the edgemore
Flush-head, low displacement studs - FHL, FHLS
Low-Displacement Head Studs - Types FHL, FHLS 2
Unit of Measure
1 2 3 4 

Part #

Thread Size x Pitch

Hole Size in Sheet + 0.08

L - Length ± 0.4

H ± 0.4

S Max.

Fastener Material

Standard Finish

CAD

FHL-M2.5-6ZI N/A M2.5 x 0.45 N/A 2.5 mm N/A 6 mm N/A 3.15 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3-6ZI N/A M3 x 0.5 N/A 3.0 mm N/A 6 mm N/A 3.65 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3.5-6ZI N/A M3.5 x 0.6 N/A 3.5 mm N/A 6 mm N/A 4.15 mm N/A 2.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M4-6ZI N/A M4 x 0.7 N/A 4 mm N/A 6 mm N/A 4.65 mm N/A 2.4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M2.5-8ZI N/A M2.5 x 0.45 N/A 2.5 mm N/A 8 mm N/A 3.15 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3-8ZI N/A M3 x 0.5 N/A 3.0 mm N/A 8 mm N/A 3.65 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3.5-8ZI N/A M3.5 x 0.6 N/A 3.5 mm N/A 8 mm N/A 4.15 mm N/A 2.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M4-8ZI N/A M4 x 0.7 N/A 4 mm N/A 8 mm N/A 4.65 mm N/A 2.4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M5-8ZI N/A M5 x 0.8 N/A 5 mm N/A 8 mm N/A 5.9 mm N/A 2.7 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M2.5-10ZI N/A M2.5 x 0.45 N/A 2.5 mm N/A 10 mm N/A 3.15 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3-10ZI N/A M3 x 0.5 N/A 3.0 mm N/A 10 mm N/A 3.65 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3.5-10ZI N/A M3.5 x 0.6 N/A 3.5 mm N/A 10 mm N/A 4.15 mm N/A 2.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M4-10ZI N/A M4 x 0.7 N/A 4 mm N/A 10 mm N/A 4.65 mm N/A 2.4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M5-10ZI N/A M5 x 0.8 N/A 5 mm N/A 10 mm N/A 5.9 mm N/A 2.7 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M2.5-12ZI N/A M2.5 x 0.45 N/A 2.5 mm N/A 12 mm N/A 3.15 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3-12ZI N/A M3 x 0.5 N/A 3.0 mm N/A 12 mm N/A 3.65 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3.5-12ZI N/A M3.5 x 0.6 N/A 3.5 mm N/A 12 mm N/A 4.15 mm N/A 2.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M4-12ZI N/A M4 x 0.7 N/A 4 mm N/A 12 mm N/A 4.65 mm N/A 2.4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M5-12ZI N/A M5 x 0.8 N/A 5 mm N/A 12 mm N/A 5.9 mm N/A 2.7 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M2.5-15ZI N/A M2.5 x 0.45 N/A 2.5 mm N/A 15 mm N/A 3.15 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3-15ZI N/A M3 x 0.5 N/A 3.0 mm N/A 15 mm N/A 3.65 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M3.5-15ZI N/A M3.5 x 0.6 N/A 3.5 mm N/A 15 mm N/A 4.15 mm N/A 2.30 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M4-15ZI N/A M4 x 0.7 N/A 4 mm N/A 15 mm N/A 4.65 mm N/A 2.4 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M5-15ZI N/A M5 x 0.8 N/A 5 mm N/A 15 mm N/A 5.9 mm N/A 2.7 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
FHL-M2.5-18ZI N/A M2.5 x 0.45 N/A 2.5 mm N/A 18 mm N/A 3.15 mm N/A 2.1 mm N/A Heat-Treated Carbon Steel N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless N/A CAD Icon (for items table)
Unit of Measure
1 2 3 4