HFE High Strength Studs for Thin Sheets

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High Strength Studs for Thin Sheets HFE-U

Self Clinching Fasteners • Studs for Sheet Metal
American Standard (Inches) & Metric Sizes

UNICORP Electronic Hardware Self-Clinching Fasteners - High Strength Studs For Thin Sheets HFE

• Self-clinching • Wide head • Non-Flush • Strong load bearing threads
• Installed quickly and easily by squeezing into place • Minimum sheet thickness of 0.040" /1.00 mm

American Standard Sizes: • Series HFE-U (Zinc Clear) • Series HFE-U (Zinc Yellow)

Metric Sizes: • Series HFE-U (Zinc Clear) • Series HFE-U (Zinc Yellow)

Series HFE-U

Series HFE-U (Zinc Clear) / American Standard Sizes

• Head Shape- Round • Thread Strength- 120 ksi • Sheet Hardness- HRB 85 / HB 165 or Less • Material- Heat-Treated Carbon Steel • Finish- Zinc Clear Plated per ASTM B633 • Mil-Spec- N/A
	Series HFE-U American Standard Sizes (SAE)

Part
Number

Thread

"S"
Max.

"H"
Head
Diameter

"L"
Overall
Length

"T"
Max.

Min.
Sheet
Thickness

Hole
Size in
Sheet

Max.
Hole in
Attached
Parts

Min.
Distance
to Edge

HFE-032-8ZI-U

10-32

0.102"

0.357"

0.500"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-12ZI-U

10-32

0.102"

0.357"

0.750"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-16ZI-U

10-32

0.102"

0.357"

1.000"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-20ZI-U

10-32

0.102"

0.357"

1.250"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-24ZI-U

10-32

0.102"

0.357"

1.500"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-28ZI-U

10-32

0.102"

0.357"

1.750"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-32ZI-U

10-32

0.102"

0.357"

2.000"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-0420-8ZI-U

1/4-20

0.118"

0.462"

0.500"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-12ZI-U

1/4-20

0.118"

0.462"

0.750"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-16ZI-U

1/4-20

0.118"

0.462"

1.000"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-20ZI-U

1/4-20

0.118"

0.462"

1.250"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-24ZI-U

1/4-20

0.118"

0.462"

1.500"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-28ZI-U

1/4-20

0.118"

0.462"

1.750"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-32ZI-U

1/4-20

0.118"

0.462"

2.000"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0518-8ZI-U

5/16-18

0.133"

0.586"

0.500"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-12ZI-U

5/16-18

0.133"

0.586"

0.750"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-16ZI-U

5/16-18

0.133"

0.586"

1.000"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-20ZI-U

5/16-18

0.133"

0.586"

1.250"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-24ZI-U

5/16-18

0.133"

0.586"

1.500"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-28ZI-U

5/16-18

0.133"

0.586"

1.750"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-32ZI-U

5/16-18

0.133"

0.586"

2.000"

0.083"

0.060"

0.312"

0.402"

0.560"

Series HFE-U (Zinc Clear) / Metric Sizes

• Head Shape- Round • Thread Strength- 900 mPa • Sheet Hardness- HRB 85 / HB 165 or Less • Material- Heat-Treated Carbon Steel • Finish- Zinc Clear Plated per ASTM B633 • Mil-Spec- N/A
	Series HFE-U Metric Sizes

Part
Number

Thread

"S"
Max.

"H"
Head
Diameter

"L"
Overall
Length

"T"
Max.

Min.
Sheet
Thickness

Hole
Size in
Sheet

Max.
Hole in
Attached
Parts

Min.
Distance
to Edge

HFE-M5-15ZI-U

M5 x 0.8

2.60
mm

9.60
mm

15.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-20ZI-U

M5 x 0.8

2.60
mm

9.60
mm

20.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-25ZI-U

M5 x 0.8

2.60
mm

9.60
mm

25.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-30ZI-U

M5 x 0.8

2.60
mm

9.60
mm

30.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-35ZI-U

M5 x 0.8

2.60
mm

9.60
mm

35.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-40ZI-U

M5 x 0.8

2.60
mm

9.60
mm

40.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-50ZI-U

M5 x 0.8

2.60
mm

9.60
mm

50.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M6-15ZI-U

M6 x 1.0

2.80
mm

11.35
mm

15.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-20ZI-U

M6 x 1.0

2.80
mm

11.35
mm

20.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-25ZI-U

M6 x 1.0

2.80
mm

11.35
mm

25.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-30ZI-U

M6 x 1.0

2.80
mm

11.35
mm

30.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-35ZI-U

M6 x 1.0

2.80
mm

11.35
mm

35.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-40ZI-U

M6 x 1.0

2.80
mm

11.35
mm

40.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-50ZI-U

M6 x 1.0

2.80
mm

11.35
mm

50.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M8-15ZI-U

M8 x 1.25

3.30
mm

15.30
mm

15.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-20ZI-U

M8 x 1.25

3.30
mm

15.30
mm

20.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-25ZI-U

M8 x 1.25

3.30
mm

15.30
mm

25.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-30ZI-U

M8 x 1.25

3.30
mm

15.30
mm

30.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-35ZI-U

M8 x 1.25

3.30
mm

15.30
mm

35.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-40ZI-U

M8 x 1.25

3.30
mm

15.30
mm

40.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-50ZI-U

M8 x 1.25

3.30
mm

15.30
mm

50.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

Series HFE-U

Series HFE-U (Zinc Yellow) / American Standard Sizes

• Head Shape- Round • Thread Strength- 120 ksi • Sheet Hardness- HRB 85 / HB 165 or Less • Material- Heat-Treated Carbon Steel • Finish- Zinc Yellow Plated per ASTM B633 • Mil-Spec- N/A
	Series HFE-U American Standard Sizes (SAE)

Part
Number

Thread

"S"
Max.

"H"
Head
Diameter

"L"
Overall
Length

"T"
Max.

Min.
Sheet
Thickness

Hole
Size in
Sheet

Max.
Hole in
Attached
Parts

Min.
Distance
to Edge

HFE-032-8ZC-U

10-32

0.102"

0.357"

0.500"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-12ZC-U

10-32

0.102"

0.357"

0.750"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-16ZC-U

10-32

0.102"

0.357"

1.000"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-20ZC-U

10-32

0.102"

0.357"

1.250"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-24ZC-U

10-32

0.102"

0.357"

1.500"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-28ZC-U

10-32

0.102"

0.357"

1.750"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-032-32ZC-U

10-32

0.102"

0.357"

2.000"

0.048"

0.040"

0.190"

0.280"

0.360"

HFE-0420-8ZC-U

1/4-20

0.118"

0.462"

0.500"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-12ZC-U

1/4-20

0.118"

0.462"

0.750"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-16ZC-U

1/4-20

0.118"

0.462"

1.000"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-20ZC-U

1/4-20

0.118"

0.462"

1.250"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-24ZC-U

1/4-20

0.118"

0.462"

1.500"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-28ZC-U

1/4-20

0.118"

0.462"

1.750"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0420-32ZC-U

1/4-20

0.118"

0.462"

2.000"

0.060"

0.040"

0.250"

0.340"

0.470"

HFE-0518-8ZC-U

5/16-18

0.133"

0.586"

0.500"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-12ZC-U

5/16-18

0.133"

0.586"

0.750"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-16ZC-U

5/16-18

0.133"

0.586"

1.000"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-20ZC-U

5/16-18

0.133"

0.586"

1.250"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-24ZC-U

5/16-18

0.133"

0.586"

1.500"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-28ZC-U

5/16-18

0.133"

0.586"

1.750"

0.083"

0.060"

0.312"

0.402"

0.560"

HFE-0518-32ZC-U

5/16-18

0.133"

0.586"

2.000"

0.083"

0.060"

0.312"

0.402"

0.560"

Series HFE-U (Zinc Yellow) / Metric Sizes

• Head Shape- Round • Thread Strength- 900 mPa • Sheet Hardness- HRB 85 / HB 165 or Less • Material- Heat-Treated Carbon Steel • Finish- Zinc Yellow Plated per ASTM B633 • Mil-Spec- N/A
	Series HFE-U Metric Sizes

Part
Number

Thread

"S"
Max.

"H"
Head
Diameter

"L"
Overall
Length

"T"
Max.

Min.
Sheet
Thickness

Hole
Size in
Sheet

Max.
Hole in
Attached
Parts

Min.
Distance
to Edge

HFE-M5-15ZC-U

M5 x 0.8

2.60
mm

9.60
mm

15.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-20ZC-U

M5 x 0.8

2.60
mm

9.60
mm

20.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-25ZC-U

M5 x 0.8

2.60
mm

9.60
mm

25.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-30ZC-U

M5 x 0.8

2.60
mm

9.60
mm

30.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-35ZC-U

M5 x 0.8

2.60
mm

9.60
mm

35.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-40ZC-U

M5 x 0.8

2.60
mm

9.60
mm

40.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M5-50ZC-U

M5 x 0.8

2.60
mm

9.60
mm

50.00
mm

1.35
mm

1.00
mm

5.00
mm

7.30
mm

10.00
mm

HFE-M6-15ZC-U

M6 x 1.0

2.80
mm

11.35
mm

15.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-20ZC-U

M6 x 1.0

2.80
mm

11.35
mm

20.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-25ZC-U

M6 x 1.0

2.80
mm

11.35
mm

25.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-30ZC-U

M6 x 1.0

2.80
mm

11.35
mm

30.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-35ZC-U

M6 x 1.0

2.80
mm

11.35
mm

35.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-40ZC-U

M6 x 1.0

2.80
mm

11.35
mm

40.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M6-50ZC-U

M6 x 1.0

2.80
mm

11.35
mm

50.00
mm

1.52
mm

1.00
mm

6.00
mm

8.30
mm

11.50
mm

HFE-M8-15ZC-U

M8 x 1.25

3.30
mm

15.30
mm

15.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-20ZC-U

M8 x 1.25

3.30
mm

15.30
mm

20.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-25ZC-U

M8 x 1.25

3.30
mm

15.30
mm

25.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-30ZC-U

M8 x 1.25

3.30
mm

15.30
mm

30.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-35ZC-U

M8 x 1.25

3.30
mm

15.30
mm

35.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-40ZC-U

M8 x 1.25

3.30
mm

15.30
mm

40.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

HFE-M8-50ZC-U

M8 x 1.25

3.30
mm

15.30
mm

50.00
mm

2.13
mm

1.50
mm

8.00
mm

10.30
mm

14.50
mm

UNICORP Electronic Hardware - Self Clinching Fasteners

Phone: 973-674-1700 Toll Free: 1-800-526-1389 Fax: 973-674-3803

UNICORP is a leader in manufacturing stock and custom
electronic hardware, handles and precision fasteners used by leading companies
in nearly every industry since 1971.

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