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
All rights reserved © Northern Precision Ltd.
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
Northern Precision Ltd YouTube Channel
Material & Finish
Steel Nut - Spring Steel Cage Electro Plated Zinc  (ZC)
Part Number Examples
Part number is made up as follows: (Type)-(Thread)-(Panel Range Code)-(Material/Finish code) For example: CNA-M5-1-ZC (Cage Nut for 8.3 hole-M5-0.5 to 1.1mm panel range-electro- zinc plated steel) CNB-M6-3-ZC (Cage Nut for 9.5 hole-M6-2.8 to 3.5mm panel range-electro- zinc plated steel)
RoHS REACH COMPLIANT
Dimensional
Type
H
Panel range P
A
B
Thread Size
Panel range code
Hole Size
CNA
M4 x 0.7
8.0
0.5 - 1.1
1
6.0
12.0
8.3
8.5
1.2 - 1.6
2
9.5
1.7 - 2.5
3
10.5
2.6 - 3.5
4
11.5
3.6 - 4.5
5
CNA
M5 x 0.8
8.0
0.5 - 1.1
1
6.0
12.0
8.3
8.5
1.2 - 1.6
2
9.5
1.7 - 2.5
3
10.5
2.6 - 3.5
4
11.5
3.6 - 4.5
5
CNA
M6 x 1.0
8.0
0.5 - 1.1
1
6.0
12.0
8.3
8.5
1.2 - 1.6
2
9.5
1.7 - 2.5
3
10.5
2.6 - 3.5
4
11.5
3.6 - 4.5
5
CNB
M4 x 0.7
8.7
0.7 - 1.6
1
6.0
13.2
9.5
9.5
1.7 - 2.7
2
10.2
2.8 - 3.5
3
CNB
M5 x 0.8
8.7
0.7 - 1.6
1
6.5
13.2
9.5
9.5
1.7 - 2.7
2
10.2
2.8 - 3.5
3
CNB
M6 x 1.0
8.7
0.7 - 1.6
1
6.5
13.2
9.5
9.5
1.7 - 2.7
2
10.2
2.8 - 3.5
3
CNB
M8 x 1.25
10.4
1.0 - 1.7
1
7.8
16.0
12.3
12.0
1.8 - 3.2
2
13.5
3.3 - 4.7
3
14.5
4.8 - 5.5
4
CNB
M10 x 1.5
10.4
1.0 - 1.7
1
7.8
16.0
12.3
12.0
1.8 - 3.2
2
13.5
3.3 - 4.7
3
14.5
4.8 - 6.2
4
Info
A cage nut consists of a square nut in a spring steel cage which wraps around the nut. The cage has two lugs that when compressed allow the cage to be inserted into a square hole. When the lugs are released, they hold the nut in position behind the hole. Using cage nuts provides several benefits over threaded holes. It permits a range of choice of nut and bolts size. If a screw is over-tightened, the nut can easily be replaced, unlike a pre-threaded hole with stripped threads. Cage nuts are easy to use on materials too thin or soft to be threaded. The nut is slightly loose in the cage to allow for minor adjustments in alignment, reducing the likelihood that the threads will be stripped during equipment installation and removal. The dimensions of the spring steel lugs determines thickness of the panel into which the cage nut may be fitted. The cage / lug dimensions determine the range of hole sizes into which the cage nut can be fitted. Cage nuts are commonly used in the mounting rails of equipment racks for example.
Cage Nuts Type CNA and CNB
CAGE NUTS
cage nuts