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.

HFE (heavy-duty) Studs are designed with an enlarged head diameter which projects above the sheet material and provides maximum pull through in sheets as thin as .040”.
  • Enlarged head diameter provides high-strength in sheets as thin as .040”.
  • Recommended for use in steel or aluminum sheets HRB (Rockwell “B” Scale) 85 or less and HB (Hardness Brinell) 165 or less.
Heavy duty studs, non flush - HFE
High-Strength Studs for Thin Sheets - Type HFE 2
Unit of Measure
Items Heavy duty studs, non flush - HFE
HFE-032-8ZI
High-Strength Studs for Thin Sheets - Type HFE - Unified 		Heavy duty studs, non flush - HFE
HFE-0420-8ZI
High-Strength Studs for Thin Sheets - Type HFE - Unified 		Heavy duty studs, non flush - HFE
HFE-0518-8ZI
High-Strength Studs for Thin Sheets - Type HFE - Unified 		Heavy duty studs, non flush - HFE
HFE-032-12ZI
High-Strength Studs for Thin Sheets - Type HFE - Unified 		Heavy duty studs, non flush - HFE
HFE-0420-12ZI
High-Strength Studs for Thin Sheets - Type HFE - Unified
Thread Size N/A .190-32 (#10-32) N/A .250-20 (1/4-20) N/A .313-18 (5/16-18) N/A .190-32 (#10-32) N/A .250-20 (1/4-20)
Thread Code N/A 032 N/A 0420 N/A 0518 N/A 032 N/A 0420
Length Code N/A 8 N/A 8 N/A 8 N/A 12 N/A 12
Min. Sheet Thickness N/A .040 in N/A .040 in N/A .060 in N/A .040 in N/A .040 in
Hole Size in Sheet + .005 - .000 N/A .190 in N/A .250 in N/A .312 in N/A .190 in N/A .250 in
L - Length ± .015 N/A .500 in a1378.jpg N/A .500 in a1378.jpg N/A .500 in a1378.jpg N/A .750 in a1378.jpg N/A .750 in a1378.jpg
H ± .01 N/A .357 in N/A .462 in N/A .586 in N/A .357 in N/A .462 in
S Max.1 N/A .102 in N/A .118 in N/A .133 in N/A .102 in N/A .118 in
T Max. N/A .048 in N/A .060 in N/A .083 in N/A .048 in N/A .060 in
Max. Hole in Attached Parts N/A .280 in N/A .340 in N/A .402 in N/A .280 in N/A .340 in
Min. Dist. Hole C/L to Edge N/A .360 in N/A .470 in N/A .560 in N/A .360 in N/A .470 in
Thread Strength N/A 120 ksi
For Use in Sheet Hardness N/A HRB 85 / HB 165 or Less
Thread Specification N/A External, ANSI B1.1, 2A
Fastener Material N/A Heat-Treated Carbon Steel
Standard Finish N/A Zinc plated per ASTM B633, SC1 (5µm), Type III, colorless
Optional Finish N/A
CAD Supplier N/A PennEngineering® (PEM®)
  • 1 Threads are gageable to within 2 pitches of the “S” Max. dimension. A class 3B/5H maximum material commercial nut shall pass up to the “S” Max. dimension.