973-674-1700Standoffs, Spacers, Captive, Swage, Male Female Standoffs, Jack Screws, Male Male Standoffs, Handles, Thumb Screws, Thumbscrews, Shoulder Screws, Insulating Washers, Electronic Hardware.

     Home        Search        Order        Quote        Cross        Catalog        Reps        Technical        Terms        Distributors        About Us        Contact Us

Low Displacement Head Studs  FHL-U

Self Clinching Fasteners  •  Studs for Sheet Metal
American Standard (Inches) & Metric Sizes
• Self-clinching    • Installed quickly and easily by squeezing into place    • Creates flush-head assembly
• Stud locked into place    • Allows for installation closer to edge of sheet without causing distortion
• Minimum sheet thickness of 0.040" /1.00 mm
American Standard Sizes:   • Series FHL-U
Metric Sizes:   • Series FHL-U
Series  FHL-U
Series  FHL-U  /  American Standard Sizes
      • Head Shape-  Round
      • Sheet Hardness-  HRB 80 / HB 150 or Less
      • Material-  Heat-Treated Carbon Steel
      • Finish-  Zinc Clear Plated per ASTM B633
Series FHL-U
American Standard Sizes
(SAE)
Part
Number
Thread "S"
Max.
"H"
Head
Diameter
"L"
Overall
Length
Min.
Sheet
Thickness
Hole
Size in
Sheet
Max.
Hole in
Attached
Parts
Min.
Distance
to Edge
Mil-Spec
FHL-256-4ZI-U 2-56 0.080" 0.112" 0.250" 0.040" 0.085" 0.100" 0.098" N/A
FHL-256-5ZI-U 2-56 0.080" 0.112" 0.312" 0.040" 0.085" 0.100" 0.098" N/A
FHL-256-6ZI-U 2-56 0.080" 0.112" 0.375" 0.040" 0.085" 0.100" 0.098" N/A
FHL-256-8ZI-U 2-56 0.080" 0.112" 0.500" 0.040" 0.085" 0.100" 0.098" N/A
FHL-256-10ZI-U 2-56 0.080" 0.112" 0.625" 0.040" 0.085" 0.100" 0.098" N/A
FHL-256-12ZI-U 2-56 0.080" 0.112" 0.750" 0.040" 0.085" 0.100" 0.098" N/A
 
FHL-440-4ZI-U 4-40 0.085" 0.138" 0.250" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-5ZI-U 4-40 0.085" 0.138" 0.312" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-6ZI-U 4-40 0.085" 0.138" 0.375" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-8ZI-U 4-40 0.085" 0.138" 0.500" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-10ZI-U 4-40 0.085" 0.138" 0.625" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-12ZI-U 4-40 0.085" 0.138" 0.750" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-14ZI-U 4-40 0.085" 0.138" 0.875" 0.040" 0.111" 0.125" 0.124" N/A
FHL-440-16ZI-U 4-40 0.085" 0.138" 1.000" 0.040" 0.111" 0.125" 0.124" N/A
 
FHL-632-4ZI-U 6-32 0.090" 0.164" 0.250" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-5ZI-U 6-32 0.090" 0.164" 0.312" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-6ZI-U 6-32 0.090" 0.164" 0.375" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-8ZI-U 6-32 0.090" 0.164" 0.500" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-10ZI-U 6-32 0.090" 0.164" 0.625" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-12ZI-U 6-32 0.090" 0.164" 0.750" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-14ZI-U 6-32 0.090" 0.164" 0.875" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-16ZI-U 6-32 0.090" 0.164" 1.000" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-20ZI-U 6-32 0.090" 0.164" 1.250" 0.040" 0.137" 0.150" 0.150" N/A
FHL-632-24ZI-U 6-32 0.090" 0.164" 1.500" 0.040" 0.137" 0.150" 0.150" N/A
 
FHL-832-4ZI-U 8-32 0.090" 0.190" 0.250" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-5ZI-U 8-32 0.090" 0.190" 0.312" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-6ZI-U 8-32 0.090" 0.190" 0.375" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-8ZI-U 8-32 0.090" 0.190" 0.500" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-10ZI-U 8-32 0.090" 0.190" 0.625" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-12ZI-U 8-32 0.090" 0.190" 0.750" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-14ZI-U 8-32 0.090" 0.190" 0.875" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-16ZI-U 8-32 0.090" 0.190" 1.000" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-20ZI-U 8-32 0.090" 0.190" 1.250" 0.040" 0.163" 0.180" 0.176" N/A
FHL-832-24ZI-U 8-32 0.090" 0.190" 1.500" 0.040" 0.163" 0.180" 0.176" N/A
 
FHL-032-5ZI-U 10-32 0.100" 0.225" 0.312" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-6ZI-U 10-32 0.100" 0.225" 0.375" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-8ZI-U 10-32 0.100" 0.225" 0.500" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-10ZI-U 10-32 0.100" 0.225" 0.625" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-12ZI-U 10-32 0.100" 0.225" 0.750" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-14ZI-U 10-32 0.100" 0.225" 0.875" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-16ZI-U 10-32 0.100" 0.225" 1.000" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-20ZI-U 10-32 0.100" 0.225" 1.250" 0.040" 0.189" 0.205" 0.210" N/A
FHL-032-24ZI-U 10-32 0.100" 0.225" 1.500" 0.040" 0.189" 0.205" 0.210" N/A
Series  FHL-U  /  Metric Sizes
      • Head Shape-  Round
      • Sheet Hardness-  HRB 80 / HB 150 or Less
      • Material-  Heat-Treated Carbon Steel
      • Finish-  Zinc Clear Plated per ASTM B633
Series FHL-U
Metric Sizes
Part
Number
Thread "S"
Max.
"H"
Head
Diameter
"L"
Overall
Length
Min.
Sheet
Thickness
Hole
Size in
Sheet
Max.
Hole in
Attached
Parts
Min.
Distance
to Edge
Mil-Spec
FHL-M2.5-6-ZI-U M2.5 x 0.45 2.10
mm
3.15
mm
6.00
mm
1.00
mm
2.50
mm
2.90
mm
2.80
mm
N/A
FHL-M2.5-8-ZI-U M2.5 x 0.45 2.10
mm
3.15
mm
8.00
mm
1.00
mm
2.50
mm
2.90
mm
2.80
mm
N/A
FHL-M2.5-10-ZI-U M2.5 x 0.45 2.10
mm
3.15
mm
10.00
mm
1.00
mm
2.50
mm
2.90
mm
2.80
mm
N/A
FHL-M2.5-12-ZI-U M2.5 x 0.45 2.10
mm
3.15
mm
12.00
mm
1.00
mm
2.50
mm
2.90
mm
2.80
mm
N/A
FHL-M2.5-15-ZI-U M2.5 x 0.45 2.10
mm
3.15
mm
15.00
mm
1.00
mm
2.50
mm
2.90
mm
2.80
mm
N/A
FHL-M2.5-18-ZI-U M2.5 x 0.45 2.10
mm
3.15
mm
18.00
mm
1.00
mm
2.50
mm
2.90
mm
2.80
mm
N/A
 
FHL-M3-6-ZI-U M3 x 0.5 2.10
mm
3.65
mm
6.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-8-ZI-U M3 x 0.5 2.10
mm
3.65
mm
8.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-10-ZI-U M3 x 0.5 2.10
mm
3.65
mm
10.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-12-ZI-U M3 x 0.5 2.10
mm
3.65
mm
12.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-15-ZI-U M3 x 0.5 2.10
mm
3.65
mm
15.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-18-ZI-U M3 x 0.5 2.10
mm
3.65
mm
18.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-20-ZI-U M3 x 0.5 2.10
mm
3.65
mm
20.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
FHL-M3-25-ZI-U M3 x 0.5 2.10
mm
3.65
mm
25.00
mm
1.00
mm
3.00
mm
3.40
mm
3.30
mm
N/A
 
FHL-M3.5-6-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
6.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-8-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
8.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-10-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
10.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-12-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
12.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-15-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
15.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-18-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
18.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-20-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
20.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-25-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
25.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
FHL-M3.5-30-ZI-U M3.5 x 0.6 2.30
mm
4.15
mm
30.00
mm
1.00
mm
3.50
mm
3.90
mm
3.80
mm
N/A
 
FHL-M4-6-ZI-U M4 x 0.7 2.40
mm
4.65
mm
6.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-8-ZI-U M4 x 0.7 2.40
mm
4.65
mm
8.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-10-ZI-U M4 x 0.7 2.40
mm
4.65
mm
10.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-12-ZI-U M4 x 0.7 2.40
mm
4.65
mm
12.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-15-ZI-U M4 x 0.7 2.40
mm
4.65
mm
15.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-18-ZI-U M4 x 0.7 2.40
mm
4.65
mm
18.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-20-ZI-U M4 x 0.7 2.40
mm
4.65
mm
20.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-25-ZI-U M4 x 0.7 2.40
mm
4.65
mm
25.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-30-ZI-U M4 x 0.7 2.40
mm
4.65
mm
30.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
FHL-M4-35-ZI-U M4 x 0.7 2.40
mm
4.65
mm
35.00
mm
1.00
mm
4.00
mm
4.40
mm
4.30
mm
N/A
 
FHL-M5-8-ZI-U M5 x 0.8 2.70
mm
5.90
mm
8.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-10-ZI-U M5 x 0.8 2.70
mm
5.90
mm
10.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-12-ZI-U M5 x 0.8 2.70
mm
5.90
mm
12.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-15-ZI-U M5 x 0.8 2.70
mm
5.90
mm
15.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-18-ZI-U M5 x 0.8 2.70
mm
5.90
mm
18.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-20-ZI-U M5 x 0.8 2.70
mm
5.90
mm
20.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-25-ZI-U M5 x 0.8 2.70
mm
5.90
mm
25.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-30-ZI-U M5 x 0.8 2.70
mm
5.90
mm
30.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A
FHL-M5-35-ZI-U M5 x 0.8 2.70
mm
5.90
mm
35.00
mm
1.00
mm
5.00
mm
5.40
mm
5.60
mm
N/A

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.


291 Cleveland St,  Orange,  New Jersey  07050  USA
Mailing Address:  P.O. Box 280,  Orange,  New Jersey  07051-0280  USA

Feedback  I  Legal Notice  I  Copyright  I  Services  I  Jobs  I  Contact Us  I  Email Us  I  Privacy Statement
Copyright©2020, Unicorp Inc., unicorpinc.com or its affiliates