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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Material & Finish
300 Series Stainless Steel (A2) parts are suitable for installation in ductile panels with a maximum recommended hardness of 70 HRB. Aluminium (AL) parts are suitable for installation in ductile panels with a maximum recommended hardness of 50 HRB.
Part Number Examples
Part number is made up as follows: (Type)-(Thread)-(Length)-(Material/Finish code) For example: NCH-M3-10-A2 (Concealed Head Stud-1.6mm minimum panel-M3 thread-10mm long- stainless steel) NCH-M4-16-AL (Concealed Head Stud-1.6mm minimum panel-M4 thread-16mm long- aluminium) NCFH-M4-20-A2 (Concealed Head Stud-2.4mm minimum panel-M4 thread-20mm long- stainless steel)
RoHS REACH COMPLIANT
Info
Self-Clinching Concealed Head Studs provide strong captivated male threads in panels as thin as 1.60mm. Utilising a special proven clinch feature, this fastener has excellent pull-out and torque-out characteristics. Installed into a pre-prepared milled blind hole, it leaves the underside of the panel intact. Like all self clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel.   Concealed Head Studs  are available in a range of thread sizes and lengths, manufactured from 300 series stainless steel, aluminium and are suitable for installation in ductile panels with a recommended maximum hardness of 70 HRB for stainless steel parts and 50 HRB for aluminium parts.
Dimensional
Thread Size
Lengths (L) ±0.40
M3 x 0.5 M4 x 0.7 M5 x 0.8 6 6 - 8 8 - 10 10 10 12 12 12 16 16 16 20 20 20 - 25 25
Thread size
Type
S Max.
Blind hole Dia. +0.08 -0.0
C Max.
D ±0.25
Minimum sheet thickness
Min. CL to edge of panel
NCH
1.60
1.04
NCFH
2.40
1.80
4.35
5.21
4.37
4.00
M3 x 0.5
NCH
1.60
1.04
NCFH
2.40
1.80
7.35
8.33
7.37
5.60
M4 x 0.7
NCH
1.60
1.04
NCFH
2.40
1.80
7.90
8.89
7.93
6.40
M5 x 0.8
Max. hole in attached parts
3.60
4.60
5.60
Min. blind hole depth
1.10
1.91
1.10
1.91
1.10
1.91
Self Clinching Concealed Head Studs
Type NCH & NCFH
SELF-CLINCHING CONCEALED HEAD STUDS
self-clinching concealed head studs