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High Strength Studs  HFHB-U

Self Clinching Fasteners  •  Studs for Sheet Metal
American Standard (Inches) & Metric Sizes
• Self-clinching    • Non-Flush    • Strong load bearing threads    • Easier installation than weld studs    • Greater torque-out
• Improved pull-through resistance    • HFH-U and HFHS-U best used in steel or aluminum sheets
• HFHB-U best used in copper sheets    • Installed quickly and easily by squeezing into place
• Minimum sheet thickness of 0.050" /1.30 mm
American Standard Sizes:   • Series HFHB-U  
Metric Sizes:   • Series HFHB-U
Series  HFHB-U
Series  HFHB-U  /  American Standard Sizes
      • Head Shape-  Round
      • Thread Strength-  60 ksi
      • Sheet Hardness-  HRB 55 / HB 83 or Less
      • Material-  CDA-510 Phosphor Bronze
      • Finish-  No Finish
      • Mil-Spec-  N/A
Series HFHB-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
HFHB-032-8X-U 10-32 0.105" 0.300" 0.500" 0.040" 0.050" 0.190" 0.250" 0.415"
HFHB-032-12X-U 10-32 0.105" 0.300" 0.750" 0.040" 0.050" 0.190" 0.250" 0.415"
HFHB-032-16X-U 10-32 0.105" 0.300" 1.000" 0.040" 0.050" 0.190" 0.250" 0.415"
HFHB-032-20X-U 10-32 0.105" 0.300" 1.250" 0.040" 0.050" 0.190" 0.250" 0.415"
HFHB-032-24X-U 10-32 0.105" 0.300" 1.500" 0.040" 0.050" 0.190" 0.250" 0.415"
HFHB-032-28X-U 10-32 0.105" 0.300" 1.750" 0.040" 0.050" 0.190" 0.250" 0.415"
HFHB-032-32X-U 10-32 0.105" 0.300" 2.000" 0.040" 0.050" 0.190" 0.250" 0.415"
 
HFHB-0420-8X-U 1/4-20 0.125" 0.380" 0.500" 0.050" 0.060" 0.250" 0.312" 0.460"
HFHB-0420-12X-U 1/4-20 0.125" 0.380" 0.750" 0.050" 0.060" 0.250" 0.312" 0.460"
HFHB-0420-16X-U 1/4-20 0.125" 0.380" 1.000" 0.050" 0.060" 0.250" 0.312" 0.460"
HFHB-0420-20X-U 1/4-20 0.125" 0.380" 1.250" 0.050" 0.060" 0.250" 0.312" 0.460"
HFHB-0420-24X-U 1/4-20 0.125" 0.380" 1.500" 0.050" 0.060" 0.250" 0.312" 0.460"
HFHB-0420-28X-U 1/4-20 0.125" 0.380" 1.750" 0.050" 0.060" 0.250" 0.312" 0.460"
HFHB-0420-32X-U 1/4-20 0.125" 0.380" 2.000" 0.050" 0.060" 0.250" 0.312" 0.460"
 
HFHB-0518-8X-U 5/16-18 0.140" 0.480" 0.500" 0.070" 0.075" 0.312" 0.375" 0.500"
HFHB-0518-12X-U 5/16-18 0.140" 0.480" 0.750" 0.070" 0.075" 0.312" 0.375" 0.500"
HFHB-0518-16X-U 5/16-18 0.140" 0.480" 1.000" 0.070" 0.075" 0.312" 0.375" 0.500"
HFHB-0518-20X-U 5/16-18 0.140" 0.480" 1.250" 0.070" 0.075" 0.312" 0.375" 0.500"
HFHB-0518-24X-U 5/16-18 0.140" 0.480" 1.500" 0.070" 0.075" 0.312" 0.375" 0.500"
HFHB-0518-28X-U 5/16-18 0.140" 0.480" 1.750" 0.070" 0.075" 0.312" 0.375" 0.500"
HFHB-0518-32X-U 5/16-18 0.140" 0.480" 2.000" 0.070" 0.075" 0.312" 0.375" 0.500"
 
HFHB-0616-12X-U 3/8-16 0.155" 0.580" 0.750" 0.085" 0.090" 0.375" 0.437" 0.530"
HFHB-0616-16X-U 3/8-16 0.155" 0.580" 1.000" 0.085" 0.090" 0.375" 0.437" 0.530"
HFHB-0616-20X-U 3/8-16 0.155" 0.580" 1.250" 0.085" 0.090" 0.375" 0.437" 0.530"
HFHB-0616-24X-U 3/8-16 0.155" 0.580" 1.500" 0.085" 0.090" 0.375" 0.437" 0.530"
HFHB-0616-28X-U 3/8-16 0.155" 0.580" 1.750" 0.085" 0.090" 0.375" 0.437" 0.530"
HFHB-0616-32X-U 3/8-16 0.155" 0.580" 2.000" 0.085" 0.090" 0.375" 0.437" 0.530"
Series  HFHB-U  /  Metric Sizes
      • Head Shape-  Round
      • Thread Strength-  415 mPa
      • Sheet Hardness-  HRB 55 / HB 83 or Less
      • Material-  CDA-510 Phosphor Bronze
      • Finish-  No Finish
      • Mil-Spec-  N/A
Series HFHB-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
HFHB-M5-15X-U M5 x 0.8 2.70
mm
7.80
mm
15.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
HFHB-M5-20X-U M5 x 0.8 2.70
mm
7.80
mm
20.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
HFHB-M5-25X-U M5 x 0.8 2.70
mm
7.80
mm
25.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
HFHB-M5-30X-U M5 x 0.8 2.70
mm
7.80
mm
30.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
HFHB-M5-35X-U M5 x 0.8 2.70
mm
7.80
mm
35.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
HFHB-M5-40X-U M5 x 0.8 2.70
mm
7.80
mm
40.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
HFHB-M5-50X-U M5 x 0.8 2.70
mm
7.80
mm
50.00
mm
1.14
mm
1.30
mm
5.00
mm
6.50
mm
10.70
mm
 
HFHB-M6-15X-U M6 x 1.0 2.80
mm
9.40
mm
15.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
HFHB-M6-20X-U M6 x 1.0 2.80
mm
9.40
mm
20.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
HFHB-M6-25X-U M6 x 1.0 2.80
mm
9.40
mm
25.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
HFHB-M6-30X-U M6 x 1.0 2.80
mm
9.40
mm
30.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
HFHB-M6-35X-U M6 x 1.0 2.80
mm
9.40
mm
35.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
HFHB-M6-40X-U M6 x 1.0 2.80
mm
9.40
mm
40.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
HFHB-M6-50X-U M6 x 1.0 2.80
mm
9.40
mm
50.00
mm
1.27
mm
1.50
mm
6.00
mm
7.50
mm
11.50
mm
 
HFHB-M8-15X-U M8 x 1.25 3.50
mm
12.50
mm
15.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
HFHB-M8-20X-U M8 x 1.25 3.50
mm
12.50
mm
20.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
HFHB-M8-25X-U M8 x 1.25 3.50
mm
12.50
mm
25.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
HFHB-M8-30X-U M8 x 1.25 3.50
mm
12.50
mm
30.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
HFHB-M8-35X-U M8 x 1.25 3.50
mm
12.50
mm
35.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
HFHB-M8-40X-U M8 x 1.25 3.50
mm
12.50
mm
40.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
HFHB-M8-50X-U M8 x 1.25 3.50
mm
12.50
mm
50.00
mm
1.78
mm
2.00
mm
8.00
mm
9.50
mm
12.70
mm
 
HFHB-M10-15X-U M10 x 1.50 4.10
mm
15.70
mm
15.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm
HFHB-M10-20X-U M10 x 1.50 4.10
mm
15.70
mm
20.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm
HFHB-M10-25X-U M10 x 1.50 4.10
mm
15.70
mm
25.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm
HFHB-M10-30X-U M10 x 1.50 4.10
mm
15.70
mm
30.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm
HFHB-M10-35X-U M10 x 1.50 4.10
mm
15.70
mm
35.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm
HFHB-M10-40X-U M10 x 1.50 4.10
mm
15.70
mm
40.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm
HFHB-M10-50X-U M10 x 1.50 4.10
mm
15.70
mm
50.00
mm
2.29
mm
2.30
mm
10.00
mm
11.50
mm
13.70
mm

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

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