2D and 3D CAD models available for our entire inventory of fasteners!
Captive Fasteners are available in three basic groups:
  1. Self-clinching fasteners for ductile materials
  2. Broaching fasteners for non-ductile materials
  3. Weld nuts for sheet metal

Advantages

All Captive self-clinching fasteners install into a round hole which may be punched or drilled into ductile materials.  All Captive broaching fasteners install into a round hole, which may be drilled into non-ductile materials.  Captive weld nuts are designed for attachment to carbon steel and stainless steel sheet materal.  All three 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.  Captive fasteners provide added value by speeding initial assembly as well as servicing in field, keeping costs to a minimum.

Installation Principles

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 the mating part.  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.  Captive weld nuts are self piloting into holes and are round, eliminating the need for indexing.  Pilot shanks protect threads from weld spatter.


Interchangability

All Captive self-clinching fastseners conform to industry standards, which enables them to be fed through all standard automatic insertion equipment, and provide a substitute for form, fit and function.


Typical applications for Captive self-clinching fasteners:

  • ATM's
  • Agriculture Equipment
  • Air bags
  • Alarm Systems
  • Appliances
  • Arcade Games
  • Automotive
  • Avionics
  • Black Boxes
  • CATV
  • Computers
  • Control Panels
  • Copiers
  • DVD Players
  • DVR's
  • Fabricated Metal
  • Facsimile
  • Food Processing
  • Gaming Machines
  • Gas Pumps
  • Hospital Beds
  • Laser Equipment
  • Medical Equipment
  • Microwave Equipment
  • Modems
  • Office Furniture
  • Power Supplies
  • Printers
  • Stereo Equipment
  • Telecommunication
  • Telephone Systems
  • Televisions
  • Test Equipment
  • Truck Roll-up Doors
  • Vending Equipment