Self Clinching Blind Nuts

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+44 (0) 1302 836010 sales@npfasteners.com

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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 sales@npfasteners.com

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NORTHERN PRECISION LTD

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Dimensional

Material & Finish

Electro Zinc Plated* Carbon 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)-(Thread)-(Material code)-(Material/Finish code) For example: NB-M3-1-A2 (Blind Nut-M3-1.0mm min sheet thickness-stainless steel) NB-M6-2-ZI (Blind Nut-M6-2.3mm min sheet thickness-electro zinc plated carbon steel)

Info

Self-Clinching Blind 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. The closed end (blind) feature of this fastener has the added benefit of sealing the component and threads against foreign matter and eliminates the risk of a potentially damaging incursion of extra long screws - especially useful in electronic components with a risk of shorting. Like all self clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel. Blind Nuts are available in various thread sizes, manufactured from electro zinc plated steel and 300 series stainless steel and are suitable for installation in ductile steel and aluminium panels with a recommended maximum hardness of 80 HRB for steel parts and 70 HRB for stainless steel parts.

Thread size

Material code

S Max.

Hole size +0.08 -0.0

C Max.

D Max.

Min. sheet thickness

Min. CL to edge of panel

1.0

0.97

1.4

1.38

4.22

6.35

4.25

4.8

M3 x 0.5

1.0

0.97

1.4

1.38

5.38

7.95

5.40

6.9

M4 x 0.7

1.0

0.97

1.4

1.38

1.4

1.38

6.38

8.75

6.40

7.1

M5 x 0.8

2.3

2.21

8.72

11.10

8.75

8.6

M6 x 1.0

L2 ±0.25

9.60

11.20

14.30

T Min.

5.30

7.10

7.80

L1 Max.

8.50

9.80

12.70

E ±0.25

3.84

5.20

6.02

7.80

Installation Guide and Performance Data Downloadable Data Sheet Back

*Coverage to all major surfaces. Coverage to full depth of thread in blind holes cannot be guaranteed due to the limitations of the electro-plating process. Please consult with our technical department for further information.

Type NB

SELF-CLINCHING BLIND NUTS