HFE-0420-20ZI
High-Strength Studs for Thin Sheets – Type HFE
HFE-0420-20ZI
High-Strength Studs for Thin Sheets – Type HFE
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.
Specifications
- Thread Code
- 0420
- Thread Size
- .250-20 (1/4-20)
- Thread Specification
- 2A, ASME B1.1
- Fastener Material
- Hardened Carbon Steel
- Standard Finish
- Colorless, SC1 (5µm), Type III, Zinc plated per ASTM B633
- For Use in Sheet Hardness
- HRB 85 / HB 165 or Less
- Product Category
- High-Strength Studs for Thin Sheets – Type HFE – Unified
- Thread Type
- External
- Brand
- PEM
- PEM Product Family
- HFE
- Product Type
- Studs
- H ± .01_in
- 0.462in
- Hole Size in Sheet +.005 – .000_in
- 0.25in
- Hole Size in Sheet + 0.13_mm
- mm
- L Len Pm 015in Or 4mm
- 1.25in
- L ± 0.4_mm
- mm
- Min. Dist. Hole C/L to Edge_in
- 0.47in
- S Max._in
- 0.118in
- T Max._in
- 0.06in
Installation & Performance Data
| Type | Thread Code | Installation (lbs.) | Anvil Dim A (in.) | Anvil Dim C (in.) | Haeger Anvil For Sheet .040 to .060 (in.) | Haeger Anvil For Sheet > .060 (in.) | Haeger Punch | Pemserter Anvil For Sheet .040 to .060 (in.) | Pemserter Anvil For Sheet > .060 (in.) | Pemserter Punch | PULL THRU (lbs.) | Pushout (lbs.) | REC. NUT TIGHTENING TORQUE (ft. lbs.) | SHEET HARDNESS HRB | TENSILE STRENGTH (lbs.) | TEST BUSHING HOLE SIZE FOR PULL THRU TESTS (in.) | TEST SHEET THICKNESS & MATERIAL | Torque-out (in. lbs.) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HFE | 420 | 8000 | .295 – .300 | .250 – .253 | H-103-04LC | H-103-04L | H-108-0020L | 8003702 | 970200010300 | 8003708 | 3200 | 180 | 8 | 27 | 3820 | 0.335 | .040″ Aluminum | 120 |
| HFE | 420 | 13500 | .295 – .300 | .250 – .253 | H-103-04LC | H-103-04L | H-108-0020L | 8003702 | 970200010300 | 8003708 | 3600 | 340 | 9 | 67 | 3820 | 0.335 | .040″ Cold-rolled Steel | 130 |
Inventory
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