Self Clinching Fasteners

Self clinching fasteners are easy to install fasteners that provide load carrying threads for this metal sheets.
Joining thin sheet-metal panels is no longer a difficult task. A number of options are available. Tack welding can be awkward and inconsistent, mounting brackets involve a lot of hardware, and adhesives can fail with cyclic temperatures. Self-clinching fasteners, on the other hand, join panels with little preparation, assembly, or equipment and provide strong threads in metal sheets too thin to be tapped.
These are usually threaded and when pressed into ductile metal, displace the host material around the mounting hole. Pressing causes the panel material to cold flow into a specially designed annular recess in the shank or pilot of the fastener.
A serrated clinching ring or hex head prevents the fastener from rotating in the host material. Thus, self-clinching fasteners become a permanent part of the panel, chassis, or bracket into which they are installed.
Advantages.
  • Occupy less space;
  • Need fewer assembly operations than caged/ anchor nuts.
  • They are reusable
  • Have more holding power than sheet-metal screws. 
  • Ideal for thin metal sheets needing good pull-out and torque loads.
  • Reverse side of sheets remains flush.
  • As self-clinching fasteners eliminate the need for tapping, thinner sheet metal can be used leading to cost reduction.
  • A compact design, low profile & neat appearance guaranteed.
Available in MS and SS
Nuts  – JC-S   JC-CLS  JC-SP
Standoffs  –  JC-SO  JC-BSO  JC-SOS  JC-BSOS
Studs  –  JC-FH JC-FHS  JC-FH4
 
Sizes available:
  • From M2 upto M12
  • From 2-56UNC to 3/8-16UNC
  • Also available UNF series

1. SELF CLINCHING NUTS

Clinch Nuts SS / Clinch Nuts SP4 Item Code: A2C39

Self-clinching nuts are installed by placing them in properly sized holes in sheets and applying a parallel squeezing force to the head of the nut. The sheet metal surrounding the head cold flows into an undercut thereby making the fastener an integral part of the sheet

Self-Clinching Nuts provide strong reusable female threads in panels that are too thin to be conventionally tapped.

Utilising a special proven clinch feature, this fastener has excellent torque-out and push-out characteristics whilst providing a flush finish on the underside of the panel. Like all self clinching fasteners they are installed using a parallel squeezing force so require access to both sides of the panel.
Sizes: M2 to M10. 4-40UNC to 1/4-20UNC.

Materials: Mild Steel, Stainless Steel A2 and SP4

CLS-Clinch-Nuts Datasheet

 

Self-Clinching Flush Nuts 

If you have a need for an industrial fastener that, after installation, will be completely flush with its surrounding surface, then the self-clinching flush nut should be your fastener of choice.

These fasteners are ideal for applications where a thin sheet requires load-bearing threads but still must remain smooth, with no protrusions on either surface. This can provide strong threads in places which would be inaccessible for installation after chassis are formed.

Utilising a special proven clinch feature, this fastener has excellent torque-out and push-out characteristics whilst providing a flush finish on both sides of the panel. The hexagonal head ensures high axial and torsional strength.

Like all self-clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel.

Flush Nuts are available in various thread sizes, manufactured from 300 series stainless steel and are suitable for installation in ductile steel and aluminium panels with a recommended maximum hardness of 70 HRB

Flush Nut Datasheet


2. SELF CLINCHING STANDOFFS

Self-Clinching Blind Standoff

This provides an excellent solution for mounting, spacing and stacking of boards and panels.

They provide strong captivated reusable female threads in a spacer format in thin sheets.  Utilising a hexagon head and a clinch feature, this fastener has excellent torque-out, pull-through  and push-out characteristics whilst providing a flush finish on the underside of the panel, requiring minimal  surface finishing after installation. They are installed using a parallel squeezing action, so require access to both sides of  the panel.  

Ease of assembly and quick removal are major reasons to specify clinch Standoffs. They satisfy many functional and cosmetic requirements.

Blind-Standoff-Datasheet


 

Self-Clinching Through Standoff

They provide strong captivated reusable female threads in a spacer format in thin sheets.  Utilising a hexagon head and a clinch feature, this fastener has excellent torque-out, pull-through  and push-out characteristics whilst providing a flush finish on the underside of the panel, requiring minimal  surface finishing after installation. They are installed using a parallel squeezing action, so require access to both sides of  the panel.

Useful for open ended application

Alailable in Mild Steel and Stainless Steel AISI 304

Standoff-Through-SOS-Datasheet

 

Self Clinching Blind Fastener

Self Clinching Blind Fasteners are used in applications requiring closed end threads. They can be easily installed into correct sized holes with a standard press applying squeezing force between parallel surfaces.

These nuts provide a permanent blind thread in thin metal sheets.

  • Advantages
  • Provide barrier against foreign matter
  • Limits screw penetration thereby protecting internal components
  • A sealing effect is achieved

Self-Clinching-Blind-Fastener


3. SELF CLINCHING STUDS

A self clinching stud is designed to become a permanent fixture of the part, component, or device onto which it’s installed. Installation is usually performed during the initial fabrication stage or in final assembly of the metal chassis. Parallel squeezing force is applied in order to secure the stud to the sheet metal panel.

These externally threaded fasteners become permanently mounted to a metal framework, reducing costs and assembly time by eliminating the necessity for loose hardware and additional installation processes. Self clinching studs are used for varying purposes, though all varieties are built to withstand high levels of torque, heavy weights, and constant, repeated pull by the attached components.

Available in Mild Steel and Stainless Steel.

FHS-Clinch-Stud Datasheet