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Low Displacement Head Studs  FHLS-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 FHLS-U
Metric Sizes:   • Series FHLS-U
Series  FHLS-U
Series  FHLS-U  /  American Standard Sizes
      • Head Shape-  Round
      • Sheet Hardness-  HRB 70 / HB 125 or Less
      • Material-  300 Series Stainless Steel
      • Finish-  Passivated per ASTM A380
Series FHLS-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
FHLS-256-4-U 2-56 0.080" 0.112" 0.250" 0.040" 0.085" 0.100" 0.098" N/A
FHLS-256-5-U 2-56 0.080" 0.112" 0.312" 0.040" 0.085" 0.100" 0.098" N/A
FHLS-256-6-U 2-56 0.080" 0.112" 0.375" 0.040" 0.085" 0.100" 0.098" N/A
FHLS-256-8-U 2-56 0.080" 0.112" 0.500" 0.040" 0.085" 0.100" 0.098" N/A
FHLS-256-10-U 2-56 0.080" 0.112" 0.625" 0.040" 0.085" 0.100" 0.098" N/A
FHLS-256-12-U 2-56 0.080" 0.112" 0.750" 0.040" 0.085" 0.100" 0.098" N/A
 
FHLS-440-4-U 4-40 0.085" 0.138" 0.250" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-5-U 4-40 0.085" 0.138" 0.312" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-6-U 4-40 0.085" 0.138" 0.375" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-8-U 4-40 0.085" 0.138" 0.500" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-10-U 4-40 0.085" 0.138" 0.625" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-12-U 4-40 0.085" 0.138" 0.750" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-14-U 4-40 0.085" 0.138" 0.875" 0.040" 0.111" 0.125" 0.124" N/A
FHLS-440-16-U 4-40 0.085" 0.138" 1.000" 0.040" 0.111" 0.125" 0.124" N/A
 
FHLS-632-4-U 6-32 0.090" 0.164" 0.250" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-5-U 6-32 0.090" 0.164" 0.312" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-6-U 6-32 0.090" 0.164" 0.375" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-8-U 6-32 0.090" 0.164" 0.500" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-10-U 6-32 0.090" 0.164" 0.625" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-12-U 6-32 0.090" 0.164" 0.750" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-14-U 6-32 0.090" 0.164" 0.875" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-16-U 6-32 0.090" 0.164" 1.000" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-20-U 6-32 0.090" 0.164" 1.250" 0.040" 0.137" 0.150" 0.150" N/A
FHLS-632-24-U 6-32 0.090" 0.164" 1.500" 0.040" 0.137" 0.150" 0.150" N/A
 
FHLS-832-4-U 8-32 0.090" 0.190" 0.250" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-5-U 8-32 0.090" 0.190" 0.312" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-6-U 8-32 0.090" 0.190" 0.375" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-8-U 8-32 0.090" 0.190" 0.500" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-10-U 8-32 0.090" 0.190" 0.625" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-12-U 8-32 0.090" 0.190" 0.750" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-14-U 8-32 0.090" 0.190" 0.875" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-16-U 8-32 0.090" 0.190" 1.000" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-20-U 8-32 0.090" 0.190" 1.250" 0.040" 0.163" 0.180" 0.176" N/A
FHLS-832-24-U 8-32 0.090" 0.190" 1.500" 0.040" 0.163" 0.180" 0.176" N/A
 
FHLS-032-5-U 10-32 0.100" 0.225" 0.312" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-6-U 10-32 0.100" 0.225" 0.375" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-8-U 10-32 0.100" 0.225" 0.500" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-10-U 10-32 0.100" 0.225" 0.625" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-12-U 10-32 0.100" 0.225" 0.750" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-14-U 10-32 0.100" 0.225" 0.875" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-16-U 10-32 0.100" 0.225" 1.000" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-20-U 10-32 0.100" 0.225" 1.250" 0.040" 0.189" 0.205" 0.210" N/A
FHLS-032-24-U 10-32 0.100" 0.225" 1.500" 0.040" 0.189" 0.205" 0.210" N/A
Series  FHLS-U  /  Metric Sizes
      • Head Shape-  Round
      • Sheet Hardness-  HRB 70 / HB 125 or Less
      • Material-  300 Series Stainless Steel
      • Finish-  Passivated per ASTM A380
Series FHLS-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
FHLS-M2.5-6-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
FHLS-M2.5-8-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
FHLS-M2.5-10-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
FHLS-M2.5-12-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
FHLS-M2.5-15-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
FHLS-M2.5-18-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
 
FHLS-M3-6-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
FHLS-M3-8-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
FHLS-M3-10-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
FHLS-M3-12-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
FHLS-M3-15-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
FHLS-M3-18-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
FHLS-M3-20-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
FHLS-M3-25-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
 
FHLS-M3.5-6-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
FHLS-M3.5-8-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
FHLS-M3.5-10-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
FHLS-M3.5-12-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
FHLS-M3.5-15-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
FHLS-M3.5-18-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
FHLS-M3.5-20-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
FHLS-M3.5-25-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
FHLS-M3.5-30-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
 
FHLS-M4-6-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
FHLS-M4-8-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
FHLS-M4-10-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
FHLS-M4-12-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
FHLS-M4-15-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
FHLS-M4-18-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
FHLS-M4-20-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
FHLS-M4-25-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
FHLS-M4-30-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
FHLS-M4-35-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
 
FHLS-M5-8-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
FHLS-M5-10-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
FHLS-M5-12-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
FHLS-M5-15-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
FHLS-M5-18-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
FHLS-M5-20-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
FHLS-M5-25-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
FHLS-M5-30-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
FHLS-M5-35-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

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