NP
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 836012 sales@npfasteners.com
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NORTHERN PRECISION LTD
Accreditations Northern Precision Ltd operate a quality management system in accordance with ISO 9001:2008. The ISO 9001:2008 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.
Registered in England & Wales Company number 3275391
V.A.T Registration number GB 684 1384 17
NP
NORTHERN PRECISION LTD
Specialist Fasteners for Sheet Metal
+44 (0) 1302 836010
+44 (0) 1302 836012
Tel:
Fax:
sales@npfasteners.com
Quality
Service
Reliability
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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)
RoHS REACH COMPLIANT
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
1.0
0.97
2
1.4
1.38
4.22
6.35
4.25
4.8
M3 x 0.5
1
1.0
0.97
2
1.4
1.38
5.38
7.95
5.40
6.9
M4 x 0.7
1
1.0
0.97
2
1.4
1.38
1
1.4
1.38
6.38
8.75
6.40
7.1
M5 x 0.8
2
2.3
2.21
8.72
11.10
8.75
8.6
M6 x 1.0
L2 ±0.25
9.60
11.20
11.20
14.30
T Min.
5.30
7.10
7.10
7.80
L1 Max.
8.50
9.80
9.80
12.70
E ±0.25
3.84
5.20
6.02
7.80
Self Clinching Blind Nuts
Type NB
SELF-CLINCHING BLIND NUTS
self-clinching blind nuts