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High Tensile Strength Studs  HFG8-U,  HF109-U

Self Clinching Fasteners  •  Studs for Sheet Metal
American Standard (Inches) & Metric Sizes
• Self-clinching     • Non-Flush     • Strong load bearing threads     • For heavy-duty applications
• Installed quickly and easily by squeezing into place     • Minimum sheet thickness of 0.040" /1.00 mm
American Standard Sizes:   • Series HFG8-U
Metric Sizes:   • Series HF109-U
Series  HFG8-U
Series  HFG8-U  /  American Standard Sizes
      • Head Shape-  Round
      • Sheet Hardness-  HRB 89 / HB 180 or Less
      • Material-  Heat-Treated Medium Carbon Alloy Steel
      • Finish-  Zinc Clear Plated per ASTM B633
      • Mil-Spec-  N/A
Series HFG8-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
HFG8-032-8Z1-U 10-32 0.105" 0.391" 0.500" 0.077" 0.040" 0.190" 0.280" 0.469"
HFG8-032-12Z1-U 10-32 0.105" 0.391" 0.750" 0.077" 0.040" 0.190" 0.280" 0.469"
HFG8-032-16Z1-U 10-32 0.105" 0.391" 1.000" 0.077" 0.040" 0.190" 0.280" 0.469"
 
HFG8-0420-8Z1-U 1/4-20 0.125" 0.507" 0.500" 0.090" 0.040" 0.250" 0.340" 0.709"
HFG8-0420-12Z1-U 1/4-20 0.125" 0.507" 0.750" 0.090" 0.040" 0.250" 0.340" 0.709"
HFG8-0420-16Z1-U 1/4-20 0.125" 0.507" 1.000" 0.090" 0.040" 0.250" 0.340" 0.709"
 
HFG8-0518-12Z1-U 5/16-18 0.140" 0.645" 0.750" 0.126" 0.060" 0.312" 0.402" 0.827"
HFG8-0518-16Z1-U 5/16-18 0.140" 0.645" 1.000" 0.126" 0.060" 0.312" 0.402" 0.827"
Series  HF109-U
Series  HF109-U  /  Metric Sizes
      • Head Shape-  Round
      • Sheet Hardness-  HRB 89 / HB 180 or Less
      • Material-  Heat-Treated Medium Carbon Alloy Steel
      • Finish-  Zinc Clear Plated per ASTM B633
      • Mil-Spec-  N/A
Series HF109-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
HF109-M5-15ZI-U M5 x 0.8 2.60
mm
10.30
mm
15.00
mm
2.06
mm
1.00
mm
5.00
mm
7.30
mm
11.50
mm
HF109-M5-20ZI-U M5 x 0.8 2.60
mm
10.30
mm
20.00
mm
2.06
mm
1.00
mm
5.00
mm
7.30
mm
11.50
mm
HF109-M5-25ZI-U M5 x 0.8 2.60
mm
10.30
mm
25.00
mm
2.06
mm
1.00
mm
5.00
mm
7.30
mm
11.50
mm
 
HF109-M6-15ZI-U M6 x 1.0 2.70
mm
12.10
mm
15.00
mm
2.29
mm
1.00
mm
6.00
mm
8.30
mm
18.00
mm
HF109-M6-20ZI-U M6 x 1.0 2.70
mm
12.10
mm
20.00
mm
2.29
mm
1.00
mm
6.00
mm
8.30
mm
18.00
mm
HF109-M6-25ZI-U M6 x 1.0 2.70
mm
12.10
mm
25.00
mm
2.29
mm
1.00
mm
6.00
mm
8.30
mm
18.00
mm
 
HF109-M8-20ZI-U M8 x 1.25 3.40
mm
16.60
mm
20.00
mm
3.25
mm
1.50
mm
8.00
mm
10.30
mm
21.00
mm
HF109-M8-25ZI-U M8 x 1.25 3.40
mm
16.60
mm
25.00
mm
3.25
mm
1.50
mm
8.00
mm
10.30
mm
21.00
mm

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

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