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Self Clinching Fasteners
Technical / Engineering Info

Self Clinching Fasteners e-Catalog
  • Captive Panel Screws and Hardware
• Fasteners for Mounting into PC Boards
• Miniature Series
• Nuts for Sheet Metal
• Sheet to Sheet Attachment
• Standoffs for Sheet Metal
• Studs and Pins for Sheet Metal
• Weld Nuts
 
                                          About Self-Clinching Fasteners

                                        • Self-clinching fasteners are standoffs, nuts, studs, and pins used to attach components
                                                  to metal and non-metal sheets
                                        • Attachment is permanent load-bearing thread
                                        • Reverse side of metal sheet remains flush- no swaged rim projects
                                        • Eliminates the possibility of loose hardware
                                        • Quick installation with parallel acting squeezing force to mount hardware into plain hole
                                        • Most common materials used are steel, 300 & 400 series stainless steel, and aluminum
                                        • Common finishes are zinc clear, tin plating and tin over copper flash
                                        • Benefits include low installation cost, fewer parts to handle, reduction in assembly time
                                        • High push-out and torque-out resistance
                                        • No special hole preparation, such as chamfering or deburring
                                        • No re-tapping needed after application
                                        • Parts have great reusability and do not require special machinery for installation
 
 
 
Available Plating
 
                 • Black Nitride Finish
                 • Cadmium Plating
                 • Dry Film Lubricant
                 • Electro-Tin / Solderable Plating
                 • Nickel Plating
                 • Passivation of Stainless Steel
                 • Zinc Plating
 
   
 
 
 
Available Materials
   
                 • 17-7 Stainless Steel           • CDA-510 Phosphor Bronze
                 • 300 Series Stainless Steel           • Free-Machining, Leaded Brass
                 • 400 Series Stainless Steel           • Hardened Carbon Steel
                 • 6061-T6 Aluminum           • Heat-Treated Carbon Steel
                 • 7075-T6 Aluminum           • Heat-Treated Medium Carbon Alloy Steel
                 • Age Hardened A286 Stainless Steel           • Low Carbon Steel
                 • Aluminum           • PC/ABS
                 • Carbon Steel           • Precipitation Hardening Grade Stainless Steel
                 • CDA-353 Brass           • Sintered Steel
            • Zinc Diecast
   
Captive Panel Screws and Hardware
 
 

American Standard Sizes (inches)

 
.. • Diameter:   0.219” through 0.575”
.. • Shape:  Round
.. • Material:  300 & 400 Series Stainless Steel, 17-7 Stainless, Aluminum, Carbon Steel. 
                   Hardened Carbon Steel, Heat-Treated Carbon Steel, Steel, PC/ABS
.. • Thread:   4-40 though 10-32
  • Finish:   Electro-Plated Bright Tin, Black Anodize, Black Nitride,
                 Bright nickel over copper flash, Passivated, Zinc Plated
.. • Sheet Hardness:   HRB 60 / HB 107 or Less, HRB 70 / HB 125 or Less, HRB 80 / HB 150 or Less
.. • Driver Type:   Torxฎ/Torx Plusฎ,  Slotted,  Torxฎ/Slot,  Phillips,  Phillips/Slot
 

Metric Sizes

 
.. • Diameter:   5.56 mm through 14.61 mm
.. • Shape:   Round
  • Material:   300 & 400 Series Stainless Steel, 17-7 Stainless, Aluminum, Carbon Steel.
                    Hardened Carbon Steel, Heat-Treated Carbon Steel, Steel, PC/ABS
.. • Thread:   M3 x 0.5 through M5 x 0.8
.. • Finish:   Electro-Plated Bright Tin, Black Anodize, Black Nitride,
                 Bright nickel over copper flash, Passivated, Zinc Plated
  • Sheet Hardness:   HRB 60 / HB 107 or Less, HRB 70 / HB 125 or Less, HRB 80 / HB 150 or Less
.. • Driver Type:   Torxฎ/Torx Plusฎ,  Slotted,  Torxฎ/Slot,  Phillips,  Phillips/Slot
..
 
Fasteners for Mounting into PC Boards
 
 

American Standard Sizes (inches)

 
.. • Diameter:  0.219” through 0.437”
.. • Shape:  Round
.. • Material:  ABS, 300 Series Stainless Steel, Carbon Steel, CDA-353 Brass,
                   CDA-510 Phosphor Bronze, Heat-Treated Carbon Steel, Zinc Diecast
  • Thread:  0.062” through 1.000” / 2-56 through 1/4 - 20
.. • Finish:  Bright Nickel over copper flash, Electro-Plated Bright Tin,
                Electro-Plated Matte Tin, Passivated, Zinc Plated
.. • Sheet Hardness:  HRB 55 / HB 83 or Less, HRB 60 / HB 107 or Less,
                                  HRB 70 / HB 125 or Less, HRB 80 / HB 150 or Less
 

Metric Sizes

 
.. • Diameter:  5.56 mm through 15.00 mm
.. • Shape:  Round
.. • Material:  ABS, 300 Series Stainless Steel, Carbon Steel, CDA-353 Brass,
                   CDA-510 Phosphor Bronze, Heat-Treated Carbon Steel, Zinc Diecast
  • Thread:  1.00 mm through 25.00 mm / M2 x 0.4 through M10 x 1.5
.. • Finish:  Bright Nickel over copper flash, Electro-Plated Bright Tin,
                Electro-Plated Matte Tin, Passivated, Zinc Plated
.. • Sheet Hardness:  HRB 55 / HB 83 or Less, HRB 60 / HB 107 or Less,
                                  HRB 70 / HB 125 or Less, HRB 80 / HB 150 or Less
 
 
Miniature Series
 
 

American Standard Sizes (inches)

 
.. • Diameter:  0.071” through 0.156”
.. • Shape:  Round
  • Material:  Age Hardened A286 Stainless Steel, Aluminum, Carbon Steel,
                   Free-Machining Leaded Brass, 400 Series Stainless Steel
.. • Length:  0.094” through 0.125”
.. • Thread:  0-80 through 2-56
.. • Finish:  Electro-Plated Matte-Tin, Passivated
.. • Sheet Hardness:  HRB 45 / HB 84 or Less, HRB 80 / HB 150 or Less, HRB 88 / HB 176 or Less,
                                  HRB 92 / HB 195 or Less
 

Metric Sizes

 
.. • Diameter:  1.60 mm through 3.96 mm
.. • Shape:  Round
  • Material:  Age Hardened A286 Stainless Steel, Aluminum, Carbon Steel,
                    Free-Machining Leaded Brass, 400 Series Stainless Steel
.. • Length:  1.00 mm through 10.00 mm
.. • Thread:  M1 X 0.25 through M2 X 0.40
.. • Finish:  Electro-Plated Matte-Tin, Passivated
.. • Sheet Hardness:  HRB 45 / HB 84 or Less, HRB 80 / HB 150 or Less, HRB 88 / HB 176 or Less,
                                  HRB 92 / HB 195 or Less
 
 
Nuts for Sheet Metal
 
 

American Standard Sizes (inches)

 
.. • Diameter:   0.125” through 0.655”
.. • Shape:   Hex, Round
  • Material:   Age Hardened A286 Stainless Steel, Aluminum, 300 Series Stainless Steel,
                    400 Series Stainless Steel, 6061-T6 Aluminum, 7075-T6 Aluminum, Carbon Steel,
                    Heat-Treated Carbon Steel, Heat Treated 400 Series Stainless Steel, Sintered Steel
.. • Thread:   2-56 through 3/8-16
.. • Finish:   Black Dry-Film Lubricant, Passivated, Yellow Zinc Plated, Zinc Plated
.. • Sheet Hardness:   HRB 45 / HB 77 or Less, HRB 50 / HB 82 or Less, HRB 60 / HB 107 or Less,
                                   HRB 70 / HB 125 or Less, HRB 80 / HB 150 or Less, HRB 88 / HB 183 or Less,
                                   HRB 90 / HB 185 or Less
 

Metric Sizes

 
.. • Diameter:   4.07 mm through 15.24 mm
.. • Shape:   Hex, Round
.. • Material:   Age Hardened A286 Stainless Steel, Aluminum, 300 Series Stainless Steel,
                    400 Series Stainless Steel, 6061-T6 Aluminum, 7075-T6 Aluminum, Carbon Steel,
                    Heat-Treated Carbon Steel, Heat Treated 400 Series Stainless Steel, Sintered Steel
  • Thread:   M2 x 0.4 through M12 x 1.75
.. • Finish:   Black Dry-Film Lubricant, Passivated, Yellow Zinc Plated, Zinc Plated
.. • Sheet Hardness:   HRB 45 / HB 77 or Less, HRB 50 / HB 82 or Less, HRB 60 / HB 107 or Less,
                                   HRB 70 / HB 125 or Less, HRB 80 / HB 150 or Less, HRB 88 / HB 183 or Less,
                                   HRB 90 / HB 185 or Less
 
 
Sheet to Sheet Attachment
 
 

American Standard Sizes (inches)

 
.. • Diameter:   0.139” through 0.237”
.. • Shape:   Round
  • Material:   300 Series Stainless Steel, Low Carbon Steel, Precipitation Hardening Grade Stainless Steel
.. • Finish:   Passivated, Zinc Plated
.. • Sheet Hardness:   HRB 80 / HB 150 or Less, HRB 88 / HB 183 or Less
 

Metric Sizes

 
.. • Diameter:   3.53 mm through 6.02 mm
.. • Shape:   Round
  • Material:   300 Series Stainless Steel, Low Carbon Steel, Precipitation Hardening Grade Stainless Steel
.. • Finish:   Passivated, Zinc Plated
.. • Sheet Hardness:   HRB 80 / HB 150 or Less, HRB 88 / HB 183 or Less
 
 
Standoffs for Sheet Metal
 
 

American Standard Sizes (inches)

 
.. • Diameter:  3/16” through 7/16”
.. • Shape:  Hex, Round
  • Material:  300 Series Stainless Steel, 400 Series Stainless Steel, Aluminum, Carbon Steel,
                    Heat-Treated Carbon Steel
.. • Length:  0.063” through 1.062”
.. • Thread:  4-40 through 1/4 - 20
.. • Finish:  Passivated, Zinc Plated
.. • Sheet Hardness:  HRB 50 / HB 82 or Less, HRB 70 / HB 125 or Less, HRB 80 /
                                  HB 150 or Less, HRB 88 / HB 176 or Less
 

Metric Sizes

 
.. • Diameter:  4.80 mm through 9.53 mm
.. • Shape:  Hex, Round
.. • Material:  300 Series Stainless Steel, 400 Series Stainless Steel, Aluminum, Carbon Steel,
                   Heat-Treated Carbon Steel
.. • Length:  0.063” through 1.062”
  • Thread:  4-40 through 1/4 - 20
.. • Finish:  Passivated, Zinc Plated
.. • Sheet Hardness:  HRB 50 / HB 82 or Less, HRB 70 / HB 125 or Less,
                                  HRB 80 / HB 150 or Less, HRB 88 / HB 176 or Less
 
 
Studs and Pins for Sheet Metal
 
 

American Standard Sizes (inches)

 
.. • Diameter:  0.125” through 0.645”
.. • Shape:  Round
.. • Material:  300 Series Stainless Steel, Aluminum, 400 Series, Stainless Steel,
                    Hardened Carbon Steel, Heat-Treated Carbon Steel, CDA-510 Phosphor Bronze,
                    Heat-Treated Medium Carbon Alloy Steel, Precipitation Hardened Stainless Steel
.. • Length:  0.250” through 2.000”
  • Thread:  2-56 through 5/16-18
.. • Finish:  Passivated, Yellow Zinc Plated, Zinc Plated
.. • Sheet Hardness:  HRB 50 / HB 82 or Less, HRB 55 / HB 83 or Less, HRB 70 / HB 125 or Less,
                                  HRB 80 / HB 150 or Less, HRB 85 / HB 165 or Less, HRB 89 / HB 180 or Less,
                                  HRB 92 / HB 195 or Less
 

Metric Sizes

 
.. • Diameter:  3.00 mm through 15.30 mm
.. • Shape:  Round
.. • Material:  300 Series Stainless Steel, Aluminum, 400 Series, Stainless Steel, 
                    Hardened Carbon Steel, Heat-Treated Carbon Steel, CDA-510 Phosphor Bronze,
                    Heat-Treated Medium Carbon Alloy Steel , Precipitation Hardened Stainless Steel
.. • Length:  6.00 mm through 50.00 mm
  • Thread:  M2.5 x 0.45 through M8 x 1.25
.. • Finish:  Passivated, Yellow Zinc Plated, Zinc Plated
.. • Sheet Hardness:  HRB 50 / HB 82 or Less, HRB 55 / HB 83 or Less, HRB 70 / HB 125 or Less,
                                  HRB 80 / HB 150 or Less, HRB 85 / HB 165 or Less, HRB 89 / HB 180 or Less,
                                  HRB 92 / HB 195 or Less
 
 
Weld Nuts
 
 

American Standard Sizes (inches)

 
.. • Diameter:  0.308” through 0.522”
.. • Shape:  Round
.. • Material:  Carbon Steel, Stainless Steel
.. • Thread:  4-40 through 1/4 - 20
  • Finish:  Light Oil, Copper Flash, Passivated
 

Metric Sizes

 
.. • Diameter:  7.82 mm through 13.26 mm
.. • Shape:  Round
.. • Material:  Carbon Steel, Stainless Steel
.. • Thread:  M3 x 0.5 through M6 x 1.0
  • Finish:  Light Oil, Copper Flash, Passivated
 
 
 

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

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