New Products

OptiNut®

Introducing the newly developed OptiNut® Blind Rivet Nut. Click here for more information.

Introducing the Arnold & Shinjo range of Self Clinching Nuts and Studs

We are proud to announce our new range of Arnold & Shinjo Self Clinching Nuts and Studs. NP is now the exclusive distributor for the UK and Northern Ireland.

Click here for more information.

Reduced Head Clinch Studs

We are proud to announce our new range of Reduced Head Self Clinching Studs for applications requiring stud installation close to a bend or the edge of the panel.

NP type NFHL Clinch Studs are available from stock in a range of standard thread sizes and lengths in Steel and Stainless Steel. Give our sales office a call on +44 (0)1302 836010 for more information.

Flush Head Clinch Studs for stainless steel panels

Now available from Stock our 400 Series Stainless Steel Clinch Studs type NFH 400 are specially designed for Installation into Stainless Steel Panels with a hardness of 92HRB or less. Give our sales office a call for more information.

Related Links

Clinch Installation Guides

Clinch Performance Data

Plating Info

Galvanic Corrosion Info

Hardness conversion chart

Our range of broaching fasteners may also be of interest. Click here for further details.

Self Clinching Fasteners provide strong load bearing male or female threads in thin Steel and Aluminium panels.

Installation is neat and easy, simply locate the fastener into a punched or drilled hole and apply a parallel squeezing force to embed the fastener into the panel.

Self Clinching Fasteners work by utilizing a clinch ring which, when embedded into the panel is filled with metal by a cold flow process, thus effectively locking the fastener into the panel. The very nature of the clinch process gives high torque out and push out performance.

Self Clinching fasteners require a parallel squeezing force to be applied for successful installation. Equally important is the length of time the force is applied. Sufficient time must be allowed for the cold-flow clinching process to work (this is often referred to as the dwell time when installing on a hydraulic press).

Self Clinching fasteners CANNOT be installed with a hammer blow as the force would only be applied for about a 100th of a second which is insufficient for the cold flow process to work.

If you require help with your application please contact our technical department and we will do our best to come up with a solution for you.

Click here for self-clinching fastener installation guides.

Click here for a list of do's and don'ts when installing self-clinching fasteners.