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  1. Punch/drill specified hole in sheet. Avoid secondary operations like deburring.
  2. Place shank of nut into the hole, on the punch side. So that punch and anvil surfaces are parallel.
  3. Apply squeezing force until the shoulder of the fastener is seated flush with the sheet material.
Working principle
All Captive Self-Clinching Fasteners install into a round hole, which may be punched or drilled in ductile materials. Captive Self-Clinching Fasteners are pressed into holes in sheet metal by applying a steady squeezing force. This results in the cold-flow of sheet material, which is displaced by the knurl, into the undercut area on the shank of the fastener. Once fully embedded, the knurled area prevents torque-out during tightening of mating part. The undercut area forms a tight wedge-lock effect to provide high push-out resistance.

All Captive Broaching Fasteners for PCBs, install into a round hole, which may be drilled in non-ductile materials. Captive Broaching Fasteners are pressed into printed circuit boards and non-ductile materials and held permanently in place by an interference fit.

Both Self-Clinching and Broaching types withstand high push-out and torque-out forces. These fastener types provide a permanently attached fastener which becomes an integral part of the panel or frame and eliminates the problems associated with loose hardware in many applications/assemblies.

Typical applications of Captive Self-Clinching Fasteners
Atm's
Agriculture equipment
Air bags
Alarm systems
Appliances
Arcade games
Automotive
Avionics
Black boxes
Catv
Computers
Control panels
Copiers
Consumer electronics
Fabricated metal
Facsimile
Food processing
Gaming machines

Gas pumps
Hospital beds
Laser equipment
Medical equipment
Microwave equipment
Modems
Office furniture
Power supplies
Sterio equipment
Telecom
Telephone systems
Televisions
Test equipment
Truck roll-up doors
Vending machines
VCRs
Sheet-metal boxes & enclosures

All Self-Clinching Fasteners can be installed with any Standard Installation Equipment / Press / Hand Tools / Specialised Inserter Press.