Self Clinching Flush Head Tapered Pilot Pins Installation and Performance

Contact us You can contact us using any of the methods below. Unit 3 Durham Lane Armthorpe Doncaster South Yorkshire DN3 3FE England +44 (0)1302 836010 +44 (0)1302 831555 sales@npfasteners.com

Home About Technical Quality News Contact

NORTHERN PRECISION LTD

Accreditations Northern Precision Ltd operate a quality management system in accordance with ISO 9001. The ISO 9001 standard is recognised worldwide and you can be assured of the benefits of working with a certified company knowing that our management systems are constantly assessed and improved.

Click here to download our current accreditation certificate.

Regulatory RoHS|WEEE Compliance REACH Compliance Conflict minerals statement Environmental Policy Opening Hours Mon - Fri 08:00 - 17:00

Registered in England & Wales Company number 3275391

V.A.T Registration number GB 684 1384 17

Privacy & Cookie Policy

Jump to top of page

Back

NORTHERN PRECISION LTD

Specialist Fasteners for Sheet Metal

+44 (0) 1302 836010

+44 (0) 1302 831555

Tel:

Fax:

sales@npfasteners.com

Home

About

Technical

Quality

Contact

News

Quality

Service

Reliability

Self-Clinching Fasteners Broaching Fasteners Arnold & Shinjo Fasteners Rivet Bushes Rivet Nuts Weld Fasteners Cage Nuts Blind Rivets Inserts for Plastics Inserts for Stone, Solid Materials, Composites & Sandwich Panels Crown-Nuts Fast-Con Installation Equipment Turned & Cold Formed special parts made to order

Bespoke fastener design & development Fastener & Application testing Technical support ISO 9001 RoHS|WEEE Compliance REACH Compliance Conflict minerals Environmental Policy

OUR PRODUCT RANGE

SERVICES & SUPPORT

SELF-CLINCHING

Clinch Nuts Flush Nuts Blind Nuts Miniature Nuts Nyloc Nuts Locking Nuts Floating Nuts Flush Head Studs Flush Head Studs for Stainless Steel Reduced Flush Head Studs Thin Panel Non-Flush Studs High Strength Studs Thin Panel High Strength Studs Flush Head Pins Flush Head Tapered Pins Concealed Head Studs Through & Blind Standoffs Grounding Standoffs Thin Panel Standoffs Quick Release Standoffs Keylock Standoffs Concealed Head Standoffs Flush Panel Screw Assembly Panel Fasteners Phillips Head Panel Fasteners Low-Profile Panel Fasteners Plunger Assembly Self-Clinching fastener Do’s and Don’ts Self-Clinching fastener problem solving guides Self-Clinch in harder panels

Testing Method

Performance

Pin dia.

3mm

4mm

5mm

6mm

Installation (kN)

Pushout (N)

550

1000

900

1550

1000

1800

1100

2100

Aluminium

Test sheet material

Steel

Aluminium

Steel

Aluminium

Steel

1.2mm Aluminium

1.2mm Steel

All performance figures are averages obtained over a range of installations and should be used as an indicator only. Panel material, hole preparation, installation tooling and method can affect part performance. We always recommend that you carry out your own tests in the actual application. Please call our sales team and we will be happy to provide you with samples as well as offering technical assistance.

Hardened bushing with sufficient wall thickness to withstand applied compression load.

Head Dia. + 1.6mm

Test panel.

Applied Load from compression gauge.

Compression rig base.

Push-out testing of Self-Clinching Tapered Pins should be performed by the gradual application of a load as shown above. Bushing height should be sufficient to allow free downward movement of the stud during testing. The bushing bore must be centred on the head of the stud.

Anvil Dimensions

A +0.05

4.11

3.11

5.12

Pin dia.

4mm

3mm

5mm

B +0.05

4.88

3.88

5.89

6.12

6mm

6.89

Countersunk hole style anvil for 1.70mm or less.

Hole style anvil for 1.71mm and over panel thickness.

First punch or drill the correct size hole. Do not deburr or chamfer the hole prior to installation as this will remove material required during the clinching process. It is preferable to install the fastener from the punch side of the panel. Place the fastener in the prepared hole in the panel and then locate the fastener in the anvil, ensuring that you are using the appropriate anvil type for the panel thickness like in the diagram. With the panel held level, apply a parallel squeezing force until the head is installed flush to the panel surface. Do not over squeeze the fastener into the panel as this will result in panel deformation. When installing Self-Clinching fasteners, please pay attention to the minimum hole centreline to edge and parent material hardness limitations.

Do not remove any extra material or chamfer the hole as this could result in improper installation or reduced performance.

HRB (ROCKWELL HARDNESS B SCALE) Ensure that you are installing into a panel that is ductile and at or below the published maximum recommended hardness for the fastener.

Ensure that attention is paid to the minimum hole centreline to edge dimension for each fastener. Installing too close to an edge or bend could result in improper installation or reduced performance. Minimum centreline to edge dimensions shown for each fastener apply to one edge only. If this distance is applied on multiple sides there will be significant panel distortion unless the panel edges are supported during installation.

Material & Finish

Electro Zinc Plated Steel (ZI) parts are suitable for installation in ductile panels with a maximum recommended hardness of 80 HRB. 300 Series Stainless Steel (A2) parts are suitable for installation in ductile panels with a maximum recommended hardness of 70 HRB.

Part Number Examples

Part number is made up as follows: (Type)-(Diameter)-(Length)-(Material/Finish code) For example: NTP-3MM-10-ZI (Tapered Pin-3.0mm diameter-10mm long-electro zinc plated steel) NTP-4MM-15-A2 (Tapered Pin-4.0mm diameter-15mm long-stainless steel)

Info

Self-Clinching Flush Head Tapered Pins provide a strong captivated pilot pin or pivot point in thin panels. Utilising a special proven clinch feature, this fastener has excellent push-out characteristics as well as good resistance to side loadings, whilst providing a flush finish on the underside of the panel, meaning that minimal surface finishing is required after installation. Like all self clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel. Flush Head Pins are available in a range of diameters and lengths, manufactured from electro zinc plated steel, 300 series stainless steel and are suitable for installation in ductile panels with a recommended maximum hardness of 80 HRB for steel parts and 70 HRB for 300 series stainless steel parts.

Dimensional Data Self-Clinching fastener Do’s & Don’ts Self-Clinching fastener problem solving guides Downloadable Data Sheet Back

Installation