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
Electro Zinc Plated Steel (ZI) parts are suitable for installation in ductile panels with a maximum recommended hardness of 60 HRB. 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)-(Mounting Hole Size)-(Length)-(Material/Finish Code) For example: QRSO-4MM-10-A2 (Quick-release standoff-4.0mm top hole-10mm long-stainless steel) QRSO-4MM-12-AL (Quick-release standoff-4.0mm top hole-12mm long-aluminium) QRSO-4MM-8-ZI (Quick-release standoff-4.0mm top hole-8mm long-electro zinc plated steel)
RoHS REACH COMPLIANT
Self-Clinching Quick-Release Standoffs reduce the time and costs associated with traditional assembly methods for panel spaced applications, such as mounting and detaching PC boards, panels, or components easily without requiring any tools or additional hardware.   This fastener can also reduce or eliminate the risks associated with loose hardware potentially damaging internal circuitry.   Utilising a special proven clinch feature, once installed this fastener provides a flush finish on the underside of the panel, meaning that minimal surface finishing is required after installation. Suitable for installation in steel and aluminium panels as thin as 1mm, the quick-release end is suitable for any panel material from 1.0mm to 1.8mm thick.   Like all self clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel.   Self-Clinching Quick-Release Standoffs are available in a range of lengths, manufactured from electro zinc plated carbon steel, stainless steel, aluminium and are suitable for installation in ductile panels with a recommended maximum hardness of 60 HRB for steel parts, 70 HRB for stainless steel parts and 50 HRB for aluminium parts.
Dimensional
Info
Self Clinching Quick Release Standoffs
Type QRSO
SELF-CLINCHING QUICK-RELEASE STANDOFFS
self-clinching quick-release snaptop standoffs
Min. CL1 to edge
Hole Size +0.08 -0.00
Min. Panel Thickness
Panel Material
Location Tolerance
5.41
Bottom Panel
Min. CL2 to edge
Hole Size +0.08 -0.00
Panel Thickness Range
Panel Material
Max. Hardness
4.0
Top Panel
1.0
Metal
6.60
±0.13
1.0 - 1.8
Any
2.54
No Limit
Lengths (L) ±0.13
H ±0.13
D ±0.13
E ±0.13
B Max
8
10
12
14
16
20
18
22
25
4.78
3.58
6.35
5.39